Entity Type
Company
Filer Snapshot
Birchtech Corp. SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0000728385.
Total Filings
797
Latest Filing
13 Apr 2026
Industry
Measuring & Controlling Devices, Nec
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- Open the deeper context page only when this filer actually has insider or ownership signal.
Source: SEC filing 8-K
View Source Filing
8-K filed on 13 Apr 2026 for CIK 0000728385.
- Symbol
- BCHT on NYSE
- Business address
- 1810 Jester Drive, Corsicana, TX, 75109
- State of incorporation
- DE
- Fiscal year end
- 31 December
- Former names
- Midwest Energy Emissions Corp. (to 12 Aug 2024), China Youth Media, Inc. (to 06 Oct 2011), DIGICORP, INC. (to 25 Sep 2008), DIGICORP (to 31 Mar 2008)
Quick Takeaways
- Birchtech Corp. is an SEC filer tracked under CIK 0000728385.
- 797 filings are listed on this profile.
- Common form coverage includes 8-K, 10-K, 4 and more.
What Changed
- Latest filing: 8-K filed on 13 Apr 2026.
- Report period: 10 Apr 2026.
Why This Matters
- You can quote filing dates and form types directly from the SEC record on this page.
- Use this profile before deeper ownership or insider analysis to confirm filing history context.
Source Evidence
Source: SEC filing 8-K
View Source Filing
8-K filed on 13 Apr 2026 for CIK 0000728385.
Return Loop
Why revisit this filer page
A newly filed 8-K can change the filing history, ownership context, or next research path for Birchtech Corp..
- Latest source-backed update
- 8-K filed 13 Apr 2026
- Why come back
- Revisit after a new SEC filing appears to compare the updated record with prior filings.
- Latest filing on record: 8-K filed 13 Apr 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.
Latest update
What changed recently for Birchtech Corp.
Latest financial period: Q4 2025. Open the source-backed page to inspect the fresh filing or facts context.
Update date
31 Mar 2026
Page type
Company facts
Latest period
Q4 2025
SEC-backed company facts were refreshed from filings filed on 31 Mar 2026.
Benchmark Context
Benchmark context for this company
Birchtech Corp. has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.
Compared with
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Why this is notable
Latest financial period: Q4 2025. That gives you a fresh baseline before you compare this company with peers.
- Latest company facts filing date: 31 Mar 2026.
- Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
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Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.
Company intelligence
Research Birchtech Corp. from filings to ownership signals
Use this company page as the hub for SEC filings, fundamentals, insider activity, large-stake holders, and institutional ownership context.
Active modules
3/5
Available company intelligence paths on this page.
Filings
797
SEC submissions provide the evidence trail.
Ownership context
1/3
Insider, large-stake, and institutional ownership lanes.
Return loop
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Where is evidence?
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SEC filings
AvailableLatest company filings
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Company facts
AvailableFinancial context
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Forms 3/4/5
AvailableInsider activity
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Schedule 13D/G
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Form 13F
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SEC-verifiable company hub
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Filer Overview
Birchtech Corp. has filed 797 SEC EDGAR filings since 09 Aug 2001. Common forms include 8-K, 10-K, 4, 424B4 and more.
Latest Filings
Recent SEC filings for Birchtech Corp. with direct links to document and filing folders.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 13 Apr 2026 | 10 Apr 2026 | 001-43118 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 31 Mar 2026 | 31 Dec 2025 | 001-43118 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 17 Mar 2026 | 17 Mar 2026 | 001-43118 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Mar 2026 | 27 Feb 2026 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 27 Feb 2026 | 25 Feb 2026 | 001-43118 |
| 424B4 | Open 424B4 document | View SEC filing for 424B4 | 424B4 | 27 Feb 2026 | 333-292701 | |
| CERT | Open CERT document | View SEC filing for CERT | NYSE AMERICAN CERTIFICATION | 25 Feb 2026 | 001-43118 | |
| EFFECT | Open EFFECT document | View SEC filing for EFFECT | 17 Feb 2026 | 333-292701 | ||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 12 Feb 2026 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 12 Feb 2026 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 12 Feb 2026 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 12 Feb 2026 | |||
| S-1/A | Open S-1/A document | Open XBRL data | View SEC filing for S-1/A | S-1/A | 12 Feb 2026 | 333-292701 | |
| 8-A12B | Open 8-A12B document | View SEC filing for 8-A12B | FORM 8-A12B | 11 Feb 2026 | 001-43118 | |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 09 Feb 2026 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 09 Feb 2026 | |||
| S-1/A | Open S-1/A document | Open XBRL data | View SEC filing for S-1/A | S-1/A | 03 Feb 2026 | 333-292701 | |
| S-1 | Open S-1 document | Open XBRL data | View SEC filing for S-1 | S-1 | 13 Jan 2026 | 333-292701 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Jan 2026 | 29 Dec 2025 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 29 Dec 2025 | 23 Dec 2025 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Dec 2025 | 12 Dec 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Dec 2025 | 12 Dec 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Dec 2025 | 11 Dec 2025 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 13 Nov 2025 | 30 Sep 2025 | 000-33067 |
| DRS | Open DRS document | View SEC filing for DRS | 23 Oct 2025 | 377-08605 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2025 | 30 Jun 2025 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 23 Jun 2025 | 20 Jun 2025 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 23 Jun 2025 | 20 Jun 2025 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 20 Jun 2025 | 13 Jun 2025 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2025 | 31 Mar 2025 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 31 Mar 2025 | 31 Dec 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 31 Mar 2025 | 28 Mar 2025 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Mar 2025 | 04 Mar 2025 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Jan 2025 | 09 Jan 2025 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 06 Jan 2025 | 30 Dec 2024 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 06 Jan 2025 | 30 Dec 2024 | 000-33067 |
| ARS | Open ARS document | View SEC filing for ARS | ARS | 27 Nov 2024 | 31 Dec 2023 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 27 Nov 2024 | 27 Nov 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 15 Nov 2024 | 29 Oct 2024 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Nov 2024 | 30 Sep 2024 | 000-33067 |
| PRE 14A | Open PRE 14A document | View SEC filing for PRE 14A | PRE 14A | 13 Nov 2024 | 30 Dec 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 21 Oct 2024 | 08 Oct 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 17 Oct 2024 | 15 Oct 2024 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 12 Aug 2024 | 30 Jun 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 01 Aug 2024 | 30 Jul 2024 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Jun 2024 | 24 Jun 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Jun 2024 | 24 Jun 2024 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 13 Jun 2024 | 07 Jun 2024 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2024 | 31 Mar 2024 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 16 Apr 2024 | 31 Dec 2023 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 01 Apr 2024 | 31 Dec 2023 | 000-33067 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 13 Mar 2024 | 005-80249 | ||
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Mar 2024 | 04 Mar 2024 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Mar 2024 | 27 Feb 2024 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 15 Jan 2024 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 04 Jan 2024 | 28 Dec 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Dec 2023 | 11 Dec 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 Dec 2023 | 11 Dec 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 07 Dec 2023 | 05 Dec 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2023 | 30 Nov 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2023 | 30 Nov 2023 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 20 Nov 2023 | 30 Sep 2023 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 Nov 2023 | 30 Sep 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 14 Nov 2023 | 13 Nov 2023 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 07 Nov 2023 | 01 Nov 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 07 Nov 2023 | 01 Nov 2023 | 000-33067 |
| ARS | Open ARS document | View SEC filing for ARS | ARS | 06 Nov 2023 | 31 Dec 2022 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 03 Nov 2023 | 03 Nov 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2023 | 31 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2023 | 31 Oct 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2023 | 31 Oct 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 16 Oct 2023 | 10 Oct 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Oct 2023 | 29 Sep 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2023 | 29 Sep 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2023 | 29 Sep 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 15 Sep 2023 | 12 Sep 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 14 Sep 2023 | 11 Sep 2023 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 16 Aug 2023 | 30 Jun 2023 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 Aug 2023 | 30 Jun 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Aug 2023 | 28 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Aug 2023 | 28 Jul 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Aug 2023 | 28 Jul 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 10 Jul 2023 | 10 Jul 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 06 Jul 2023 | 03 Jul 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jun 2023 | 28 Jun 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jun 2023 | 28 Jun 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jun 2023 | 28 Jun 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jun 2023 | 07 Jun 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jun 2023 | 05 Jun 2023 | |
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | FORM 10-Q/A | 07 Jun 2023 | 31 Mar 2023 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 06 Jun 2023 | 31 Mar 2023 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 02 Jun 2023 | 26 May 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 May 2023 | 26 May 2023 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 15 May 2023 | 31 Mar 2023 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 15 May 2023 | 31 Dec 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 20 Apr 2023 | 17 Apr 2023 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 31 Mar 2023 | 31 Dec 2022 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 01 Mar 2023 | 01 Mar 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 22 Feb 2023 | 20 Feb 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 15 Feb 2023 | 10 Feb 2023 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2023 | 01 Feb 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2023 | 01 Feb 2023 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2023 | 01 Feb 2023 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 03 Feb 2023 | 31 Jan 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 25 Jan 2023 | 25 Jan 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 18 Jan 2023 | 18 Jan 2023 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 07 Dec 2022 | 01 Dec 2022 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Nov 2022 | 15 Nov 2022 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Nov 2022 | 30 Sep 2022 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 10 Nov 2022 | 08 Nov 2022 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 02 Nov 2022 | 28 Oct 2022 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Nov 2022 | 28 Oct 2022 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 30 Sep 2022 | 28 Sep 2022 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Sep 2022 | 02 Sep 2022 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 31 Aug 2022 | 30 Aug 2022 | 000-33067 |
| RW | Open RW document | View SEC filing for RW | RW | 24 Aug 2022 | 333-260960 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 Aug 2022 | 30 Jun 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 08 Aug 2022 | 03 Aug 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 06 Jun 2022 | 31 May 2022 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2022 | 31 May 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2022 | 31 May 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2022 | 31 May 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2022 | 31 May 2022 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2022 | 31 May 2022 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 18 May 2022 | 31 Mar 2022 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 16 May 2022 | 31 Mar 2022 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 05 Apr 2022 | 31 Dec 2021 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 31 Mar 2022 | 31 Dec 2021 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 10 Mar 2022 | 08 Mar 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 25 Feb 2022 | 24 Feb 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 17 Feb 2022 | 16 Feb 2022 | 000-33067 |
| DEFA14A | Open DEFA14A document | View SEC filing for DEFA14A | DEFA14A | 07 Feb 2022 | 000-33067 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 28 Jan 2022 | 24 Jan 2022 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 24 Jan 2022 | 24 Jan 2022 | 000-33067 |
| PRE 14A | Open PRE 14A document | View SEC filing for PRE 14A | PRE 14A | 10 Jan 2022 | 10 Jan 2022 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 26 Nov 2021 | 22 Nov 2021 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Nov 2021 | 22 Nov 2021 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 Nov 2021 | 30 Sep 2021 | 000-33067 |
| S-1 | Open S-1 document | Open XBRL data | View SEC filing for S-1 | FORM S-1 | 10 Nov 2021 | 333-260960 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Nov 2021 | 19 Oct 2021 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 05 Oct 2021 | 05 Oct 2021 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 16 Aug 2021 | 30 Jun 2021 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2021 | 29 Jun 2021 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 28 Jun 2021 | 23 Jun 2021 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 09 Jun 2021 | 03 Jun 2021 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Jun 2021 | 01 Jun 2021 | 000-33067 |
| DEFA14A | Open DEFA14A document | View SEC filing for DEFA14A | DEFA14A | 21 May 2021 | 000-33067 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 18 May 2021 | 13 May 2021 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 17 May 2021 | 31 Mar 2021 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 May 2021 | 01 May 2021 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 30 Apr 2021 | 03 Jun 2021 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 21 Apr 2021 | 19 Apr 2021 | |
| PRE 14A | Open PRE 14A document | View SEC filing for PRE 14A | PRE 14A | 16 Apr 2021 | 16 Apr 2021 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 05 Apr 2021 | 31 Dec 2020 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 31 Mar 2021 | 31 Dec 2020 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 22 Mar 2021 | 22 Mar 2021 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 12 Mar 2021 | 08 Mar 2021 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 10 Mar 2021 | 10 Mar 2021 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Jan 2021 | 27 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Jan 2021 | 27 Jan 2021 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Dec 2020 | 30 Nov 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Dec 2020 | 30 Nov 2020 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 23 Nov 2020 | 30 Sep 2020 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 16 Nov 2020 | 30 Sep 2020 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 30 Oct 2020 | 21 Oct 2020 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 23 Oct 2020 | 21 Oct 2020 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 23 Sep 2020 | 23 Sep 2020 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 19 Aug 2020 | 30 Jun 2020 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 Aug 2020 | 30 Jun 2020 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 06 Aug 2020 | 04 Aug 2020 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Jul 2020 | 08 Jul 2020 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2020 | 08 Jul 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2020 | 08 Jul 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2020 | 08 Jul 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2020 | 08 Jul 2020 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2020 | 08 Jul 2020 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 06 Jul 2020 | 31 Mar 2020 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 29 Jun 2020 | 31 Mar 2020 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 09 Jun 2020 | 03 Jun 2020 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 May 2020 | 15 May 2020 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 14 May 2020 | 31 Dec 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Apr 2020 | 13 Apr 2020 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 30 Mar 2020 | 31 Dec 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Nov 2019 | 15 Nov 2019 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Nov 2019 | 30 Sep 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Oct 2019 | 23 Oct 2019 | 000-33067 |
| D/A | Open D/A document | View SEC filing for D/A | 21 Aug 2019 | 021-343104 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2019 | 30 Jun 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 25 Jul 2019 | 25 Jul 2019 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | |
| D | Open D document | View SEC filing for D | 28 Jun 2019 | 021-343104 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Jun 2019 | 27 Jun 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Jun 2019 | 18 Jun 2019 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 12 Jun 2019 | 05 Jun 2019 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Jun 2019 | 04 Jun 2019 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Jun 2019 | 04 Jun 2019 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2019 | 31 Mar 2019 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 May 2019 | 14 May 2019 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 May 2019 | 14 May 2019 | |
| 10-K/A | Open 10-K/A document | View SEC filing for 10-K/A | FORM 10-K/A | 30 Apr 2019 | 31 Dec 2018 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 11 Apr 2019 | 31 Dec 2018 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 01 Apr 2019 | 31 Dec 2018 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Mar 2019 | 25 Feb 2019 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2019 | 31 Dec 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2019 | 31 Dec 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2019 | 31 Dec 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2019 | 31 Dec 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2019 | 31 Dec 2018 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FROM 8-K | 21 Dec 2018 | 17 Dec 2018 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 13 Nov 2018 | 30 Sep 2018 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2018 | 31 Oct 2018 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 15 Oct 2018 | 08 Oct 2018 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 12 Oct 2018 | 08 Oct 2018 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2018 | 30 Sep 2018 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 18 Sep 2018 | 12 Sep 2018 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Sep 2018 | 31 Aug 2018 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2018 | 30 Jun 2018 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2018 | 31 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2018 | 06 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2018 | 06 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2018 | 06 Jul 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2018 | 30 Jun 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2018 | 30 Jun 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2018 | 30 Jun 2018 | |
| D | Open D document | View SEC filing for D | 28 Jun 2018 | 021-315713 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Jun 2018 | 14 Jun 2018 | 000-33067 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 12 Jun 2018 | 08 Jun 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Jun 2018 | 08 Jun 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Jun 2018 | 08 Jun 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Jun 2018 | 08 Jun 2018 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 21 May 2018 | 31 Mar 2018 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 May 2018 | 31 Mar 2018 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 30 Apr 2018 | 30 Apr 2018 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 17 Apr 2018 | 31 Dec 2017 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 02 Apr 2018 | 31 Dec 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Feb 2018 | 23 Feb 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Feb 2018 | 23 Feb 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Feb 2018 | 23 Feb 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Feb 2018 | 05 Feb 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Feb 2018 | 05 Feb 2018 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Feb 2018 | 05 Feb 2018 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 20 Nov 2017 | 30 Sep 2017 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 Nov 2017 | 30 Sep 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Sep 2017 | 11 Sep 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Aug 2017 | 25 Aug 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Aug 2017 | 25 Aug 2017 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 21 Aug 2017 | 30 Jun 2017 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 14 Aug 2017 | 30 Jun 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 04 Aug 2017 | 31 Jul 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 30 Jun 2017 | 26 Jun 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 09 Jun 2017 | 06 Jun 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jun 2017 | 06 Jun 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2017 | 23 May 2017 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2017 | 31 Mar 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 May 2017 | 27 Apr 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 May 2017 | 27 Apr 2017 | |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 01 May 2017 | 01 May 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 May 2017 | 27 Apr 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Apr 2017 | 24 Apr 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Apr 2017 | 19 Apr 2017 | 000-33067 |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 28 Mar 2017 | 31 Dec 2016 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Mar 2017 | 21 Mar 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Feb 2017 | 27 Feb 2017 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Feb 2017 | 09 Feb 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Feb 2017 | 10 Feb 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Feb 2017 | 10 Feb 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Feb 2017 | 10 Feb 2017 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Feb 2017 | 01 Feb 2017 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2017 | 01 Feb 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2017 | 01 Feb 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2017 | 01 Feb 2017 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2017 | 01 Feb 2017 | |
| 424B3 | Open 424B3 document | View SEC filing for 424B3 | 424B3 | 11 Jan 2017 | 333-215307 | |
| EFFECT | Open EFFECT document | View SEC filing for EFFECT | 10 Jan 2017 | 333-215307 | ||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 06 Jan 2017 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 06 Jan 2017 | |||
| S-1 | Open S-1 document | Open XBRL data | View SEC filing for S-1 | FORM S-1 | 23 Dec 2016 | 333-215307 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 05 Dec 2016 | 005-80249 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 02 Dec 2016 | 29 Nov 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Dec 2016 | 29 Nov 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 22 Nov 2016 | 18 Nov 2016 | |
| D | Open D document | View SEC filing for D | 22 Nov 2016 | 021-274940 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 Nov 2016 | 14 Nov 2016 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 Nov 2016 | 30 Sep 2016 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | NT 10-Q | 15 Nov 2016 | 30 Sep 2016 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Nov 2016 | 01 Nov 2016 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Oct 2016 | 24 Oct 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Sep 2016 | 31 Aug 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Sep 2016 | 31 Aug 2016 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 12 Aug 2016 | 09 Aug 2016 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 08 Aug 2016 | 30 Jun 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2016 | 31 Jul 2016 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 Jul 2016 | 13 Jul 2016 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 12 Jul 2016 | 12 Jul 2016 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 06 Jul 2016 | 06 Jul 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2016 | 30 Jun 2016 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 24 Jun 2016 | 005-80249 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 24 Jun 2016 | 005-80249 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 16 Jun 2016 | 005-80249 | ||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 16 Jun 2016 | 005-80249 | ||
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 10 Jun 2016 | 03 Jun 2016 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 09 Jun 2016 | 03 Jun 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2016 | 31 May 2016 | |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 02 Jun 2016 | 02 Jun 2016 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 16 May 2016 | 31 Mar 2016 | 000-33067 |
| 8-K | Open 8-K document | Open XBRL data | View SEC filing for 8-K | FORM 8-K | 12 May 2016 | 12 May 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 May 2016 | 01 May 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 May 2016 | 01 May 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 May 2016 | 01 May 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 May 2016 | 30 Apr 2016 | |
| 10-K/A | Open 10-K/A document | View SEC filing for 10-K/A | FORM 10-K/A | 29 Apr 2016 | 31 Dec 2015 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Apr 2016 | 31 Mar 2016 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 30 Mar 2016 | 31 Dec 2015 | 000-33067 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 07 Mar 2016 | 005-80249 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Mar 2016 | 29 Feb 2016 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 22 Feb 2016 | 16 Feb 2016 | 000-33067 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 08 Feb 2016 | 005-80249 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Feb 2016 | 28 Jan 2016 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Feb 2016 | 28 Jan 2016 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2016 | 31 Dec 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Dec 2015 | 23 Dec 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Dec 2015 | 07 Dec 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Dec 2015 | 07 Dec 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Dec 2015 | 30 Nov 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 23 Nov 2015 | 16 Nov 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Nov 2015 | 16 Nov 2015 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 20 Nov 2015 | |||
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 19 Nov 2015 | 005-80249 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Nov 2015 | 16 Nov 2015 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 16 Nov 2015 | 30 Sep 2015 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 Nov 2015 | 09 Nov 2015 | 000-33067 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 06 Nov 2015 | |||
| 10-K/A | Open 10-K/A document | View SEC filing for 10-K/A | FORM 10-K/A | 06 Nov 2015 | 31 Dec 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2015 | 31 Oct 2015 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 02 Nov 2015 | |||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2015 | 30 Sep 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Sep 2015 | 11 Sep 2015 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 30 Sep 2015 | 01 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Sep 2015 | 28 Sep 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Sep 2015 | 28 Sep 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Sep 2015 | 23 Sep 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Sep 2015 | 11 Sep 2015 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 10 Sep 2015 | 005-80249 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Sep 2015 | 31 Aug 2015 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2015 | 30 Jun 2015 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 06 Aug 2015 | 04 Aug 2015 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Aug 2015 | 31 Jul 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jul 2015 | 28 Jul 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jul 2015 | 28 Jul 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2015 | 30 Jun 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 10 Jun 2015 | 08 Jun 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 10 Jun 2015 | 08 Jun 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jun 2015 | 29 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jun 2015 | 28 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jun 2015 | 28 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jun 2015 | 31 May 2015 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2015 | 31 Mar 2015 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 08 May 2015 | 06 May 2015 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 May 2015 | 04 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 May 2015 | 01 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 May 2015 | 01 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 May 2015 | 01 May 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 May 2015 | 30 Apr 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 24 Apr 2015 | 23 Apr 2015 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Apr 2015 | 31 Mar 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Apr 2015 | 30 Mar 2015 | 000-33067 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 23 Mar 2015 | 16 Mar 2015 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | 23 Mar 2015 | 005-80249 | ||
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 20 Mar 2015 | 31 Dec 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Mar 2015 | 16 Mar 2015 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 02 Mar 2015 | 20 Feb 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Mar 2015 | 01 Mar 2015 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 26 Feb 2015 | 20 Feb 2015 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2015 | 31 Jan 2015 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2015 | 31 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2015 | 30 Dec 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2015 | 31 Dec 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Dec 2014 | 01 Dec 2014 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 03 Dec 2014 | 24 Nov 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Dec 2014 | 30 Nov 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 01 Dec 2014 | 24 Nov 2014 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 25 Nov 2014 | 16 Nov 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 21 Nov 2014 | 18 Nov 2014 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Nov 2014 | 16 Nov 2014 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Nov 2014 | 30 Sep 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 31 Oct 2014 | 31 Oct 2014 | |
| ARS | Open ARS document | View SEC filing for ARS | AUTO-GENERATED PAPER DOCUMENT | 27 Oct 2014 | 31 Dec 2013 | 000-33067 |
| DEF 14A | Open DEF 14A document | View SEC filing for DEF 14A | DEF 14A | 27 Oct 2014 | 24 Oct 2014 | 000-33067 |
| PRE 14A | Open PRE 14A document | View SEC filing for PRE 14A | PRE 14A | 17 Oct 2014 | 17 Oct 2014 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 16 Oct 2014 | 09 Oct 2014 | 000-33067 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 02 Oct 2014 | 25 Sep 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Oct 2014 | 30 Sep 2014 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 01 Oct 2014 | 31 Aug 2014 | |
| 3/A | Open 3/A document | View SEC filing for 3/A | PRIMARY DOCUMENT | 01 Oct 2014 | 14 Aug 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Sep 2014 | 25 Sep 2014 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 09 Sep 2014 | 01 Sep 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Sep 2014 | 31 Aug 2014 | |
| D | Open D document | View SEC filing for D | 27 Aug 2014 | 021-223687 | ||
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 25 Aug 2014 | 14 Aug 2014 | |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SCHEDULE 13D | 25 Aug 2014 | 005-80249 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 Aug 2014 | 14 Aug 2014 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2014 | 30 Jun 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Aug 2014 | 01 May 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Aug 2014 | 01 May 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Aug 2014 | 29 Apr 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2014 | 30 Jun 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Jun 2014 | 26 Jun 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Jun 2014 | 16 Jun 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Jun 2014 | 16 Jun 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Jun 2014 | 11 Jun 2014 | |
| D/A | Open D/A document | View SEC filing for D/A | 16 May 2014 | 021-216685 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 15 May 2014 | 31 Mar 2014 | 000-33067 |
| D | Open D document | View SEC filing for D | 05 May 2014 | 021-216814 | ||
| D | Open D document | View SEC filing for D | 02 May 2014 | 021-216685 | ||
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 14 Mar 2014 | 31 Dec 2013 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Feb 2014 | 30 Jan 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2014 | 30 Jan 2014 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 21 Jan 2014 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2014 | 14 Jan 2014 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 16 Jan 2014 | 10 Jan 2014 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2014 | 01 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2014 | 01 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2014 | 01 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2014 | 01 Jan 2014 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2014 | 12 Dec 2013 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 02 Jan 2014 | 25 Jul 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 20 Dec 2013 | 18 Dec 2013 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 20 Dec 2013 | 12 Dec 2013 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 20 Dec 2013 | 12 Dec 2013 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 20 Dec 2013 | 12 Dec 2013 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 18 Dec 2013 | 12 Dec 2013 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 12 Nov 2013 | 30 Sep 2013 | 000-33067 |
| D/A | Open D/A document | View SEC filing for D/A | 13 Sep 2013 | 021-201196 | ||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 Aug 2013 | 30 Jun 2013 | 000-33067 |
| D | Open D document | View SEC filing for D | 12 Aug 2013 | 021-201196 | ||
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 19 Jul 2013 | 19 Mar 2013 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 15 Jul 2013 | 12 Jul 2013 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 15 Jul 2013 | 12 Jul 2013 | 000-33067 |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SC 13D | 08 Jul 2013 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2013 | 30 Jun 2013 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2013 | 27 Jun 2013 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 03 Jul 2013 | 27 Jun 2013 | 000-33067 |
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | 8-K/A | 27 Jun 2013 | 18 Jun 2013 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 21 Jun 2013 | 18 Jun 2013 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 05 Jun 2013 | 01 Jun 2013 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 05 Jun 2013 | 01 Jun 2013 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 14 May 2013 | 31 Mar 2013 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 May 2013 | 01 May 2013 | 000-33067 |
| D | Open D document | View SEC filing for D | 09 Apr 2013 | 021-194692 | ||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 09 Apr 2013 | 005-80249 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 09 Apr 2013 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 21 Mar 2013 | 19 Mar 2013 | |
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 13 Mar 2013 | 31 Dec 2012 | 000-33067 |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | SC 13G/A | 01 Feb 2013 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2013 | 31 Dec 2012 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 27 Dec 2012 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 21 Dec 2012 | |||
| 10-K/A | Open 10-K/A document | Open XBRL data | View SEC filing for 10-K/A | FORM 10-K/A | 21 Dec 2012 | 31 Dec 2011 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 14 Dec 2012 | |||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 13 Nov 2012 | 30 Sep 2012 | 000-33067 |
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | 07 Sep 2012 | 30 Sep 2011 | 000-33067 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 10 Aug 2012 | 30 Jun 2012 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2012 | 21 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Jul 2012 | 05 Jul 2012 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2012 | 29 Jun 2012 | |
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | 02 Jul 2012 | 30 Sep 2011 | 000-33067 | |
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | 02 Jul 2012 | 30 Jun 2011 | 000-33067 | |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 11 May 2012 | 31 Mar 2012 | 000-33067 |
| D | Open D document | View SEC filing for D | 02 May 2012 | 021-177557 | ||
| 10-K | Open 10-K document | Open XBRL data | View SEC filing for 10-K | FORM 10-K | 12 Apr 2012 | 31 Dec 2011 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | FORM NT 10-K | 29 Mar 2012 | 31 Dec 2011 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Mar 2012 | 21 Mar 2012 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 28 Feb 2012 | 23 Feb 2012 | 000-33067 |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SC 13G | 24 Feb 2012 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 21 Feb 2012 | 16 Feb 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 17 Feb 2012 | 16 Feb 2012 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 16 Feb 2012 | |||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 08 Feb 2012 | |||
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 03 Feb 2012 | |||
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | FORM 8-K/A | 20 Jan 2012 | 21 Jun 2011 | 000-33067 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 20 Jan 2012 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 Jan 2012 | 09 Jan 2012 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Jan 2012 | 10 Jan 2012 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 10 Jan 2012 | 10 Jan 2012 | 000-33067 |
| D | Open D document | View SEC filing for D | 05 Jan 2012 | 021-171274 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2012 | 29 Dec 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 27 Dec 2011 | 22 Dec 2011 | |
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | FORM 10-Q/A | 23 Dec 2011 | 30 Jun 2011 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 30 Nov 2011 | |||
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 21 Nov 2011 | 30 Sep 2011 | 000-33067 |
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 18 Nov 2011 | |||
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | FORM NT 10-Q | 14 Nov 2011 | 30 Sep 2011 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 14 Nov 2011 | 01 Nov 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Nov 2011 | 01 Nov 2011 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 04 Nov 2011 | 31 Oct 2011 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 20 Oct 2011 | 10 Oct 2011 | |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 18 Oct 2011 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 14 Oct 2011 | 07 Oct 2011 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 12 Oct 2011 | 07 Oct 2011 | |
| D | Open D document | View SEC filing for D | 06 Oct 2011 | 021-166870 | ||
| CORRESP | Open CORRESP document | View SEC filing for CORRESP | 05 Oct 2011 | |||
| 10-Q/A | Open 10-Q/A document | Open XBRL data | View SEC filing for 10-Q/A | FORM 10-Q/A | 05 Oct 2011 | 30 Jun 2011 | 000-33067 |
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | FORM 8-K/A | 05 Oct 2011 | 21 Jun 2011 | 000-33067 |
| D | Open D document | View SEC filing for D | 28 Sep 2011 | 021-166481 | ||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Sep 2011 | 13 Sep 2011 | 000-33067 |
| DEF 14C | Open DEF 14C document | View SEC filing for DEF 14C | DEF 14C | 15 Sep 2011 | 13 Sep 2011 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 12 Sep 2011 | |||
| PRE 14C | Open PRE 14C document | View SEC filing for PRE 14C | FORM PRE 14C | 25 Aug 2011 | 24 Aug 2011 | 000-33067 |
| 10-Q | Open 10-Q document | Open XBRL data | View SEC filing for 10-Q | FORM 10-Q | 22 Aug 2011 | 30 Jun 2011 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | FORM NT 10-Q | 15 Aug 2011 | 30 Jun 2011 | 000-33067 |
| 8-K/A | Open 8-K/A document | View SEC filing for 8-K/A | FORM 8-K/A | 10 Aug 2011 | 21 Jun 2011 | 000-33067 |
| UPLOAD | Open UPLOAD document | View SEC filing for UPLOAD | 20 Jul 2011 | |||
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 13 Jul 2011 | 07 Jul 2011 | 000-33067 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 05 Jul 2011 | 21 Jun 2011 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2011 | 21 Jun 2011 | |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 01 Jul 2011 | 21 Jun 2011 | |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 27 Jun 2011 | 21 Jun 2011 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 07 Jun 2011 | 01 Jun 2011 | 000-33067 |
| 10-Q | Open 10-Q document | View SEC filing for 10-Q | FORM 10-Q | 23 May 2011 | 31 Mar 2011 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | FORM NT10-Q | 16 May 2011 | 31 Mar 2011 | 000-33067 |
| 10-K | Open 10-K document | View SEC filing for 10-K | FORM 10-K | 19 Apr 2011 | 31 Dec 2010 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | FORM 8-K | 19 Apr 2011 | 15 Apr 2011 | 000-33067 |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | FORM NT10-K | 31 Mar 2011 | 31 Dec 2010 | 000-33067 |
| 8-K | Open 8-K document | View SEC filing for 8-K | 15 Dec 2010 | 19 Nov 2010 | 000-33067 | |
| 10-Q | Open 10-Q document | View SEC filing for 10-Q | 22 Nov 2010 | 30 Sep 2010 | 000-33067 | |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | 15 Nov 2010 | 30 Sep 2010 | 000-33067 | |
| 10-Q | Open 10-Q document | View SEC filing for 10-Q | CHINA YOUTH MEDIA, INC. FORM 10-Q | 23 Aug 2010 | 30 Jun 2010 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | 16 Aug 2010 | 30 Jun 2010 | 000-33067 | |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | DENNIS L. PELINO / CHINA YOUTH MEDIA, INC. | 07 Jul 2010 | 005-80249 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Jul 2010 | 15 Oct 2009 | |
| 10-Q | Open 10-Q document | View SEC filing for 10-Q | CHINA YOUTH MEDIA, INC FORM 10-Q | 21 May 2010 | 31 Mar 2010 | 000-33067 |
| NT 10-Q | Open NT 10-Q document | View SEC filing for NT 10-Q | 17 May 2010 | 31 Mar 2010 | 000-33067 | |
| 10-K | Open 10-K document | View SEC filing for 10-K | FORM 10-K | 15 Apr 2010 | 31 Dec 2009 | 000-33067 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Apr 2010 | 22 Oct 2009 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 14 Apr 2010 | 22 Oct 2009 | |
| NT 10-K | Open NT 10-K document | View SEC filing for NT 10-K | NT 10-K | 31 Mar 2010 | 31 Dec 2009 | 000-33067 |
About this filer
Birchtech Corp. files with the SEC under CIK 0000728385. This page aggregates EDGAR filings and related ownership activity.
Industry: Measuring & Controlling Devices, Nec.
FAQ
- What is a CIK?
- A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
- Why are some filings missing?
- New filings appear as the SEC updates EDGAR, and older records can vary by availability.
- How often is this page updated?
- Updates follow new EDGAR submissions and periodic data refreshes.