| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2022 | $3.12M | -$1.28M | -29.1% | Dec 31, 2022 | 10-K | 2023-03-30 |
| Q3 2022 | $3.36M | -$1.46M | -30.2% | Sep 30, 2022 | 10-Q | 2022-11-01 |
| Q2 2022 | $3.71M | -$1.49M | -28.7% | Jun 30, 2022 | 10-Q | 2022-08-02 |
| Q1 2022 | $4.03M | -$1.59M | -28.3% | Mar 31, 2022 | 10-Q | 2022-05-03 |
| Q4 2021 | $4.4M | -$1.62M | -26.9% | Dec 31, 2021 | 10-K | 2023-03-30 |
| Q3 2021 | $4.82M | -$1.65M | -25.5% | Sep 30, 2021 | 10-Q | 2021-11-01 |
| Q2 2021 | $5.2M | -$1.71M | -24.7% | Jun 30, 2021 | 10-Q | 2021-08-03 |
| Q1 2021 | $5.62M | -$1.76M | -23.8% | Mar 31, 2021 | 10-Q | 2021-05-04 |
| Q4 2020 | $6.02M | -$1.81M | -23.2% | Dec 31, 2020 | 10-K | 2022-02-22 |
| Q3 2020 | $6.47M | -$1.87M | -22.4% | Sep 30, 2020 | 10-Q | 2020-11-05 |
| Q2 2020 | $6.91M | -$1.88M | -21.4% | Jun 30, 2020 | 10-Q | 2020-08-04 |
| Q1 2020 | $7.38M | -$1.95M | -20.9% | Mar 31, 2020 | 10-Q | 2020-05-04 |
| Q4 2019 | $7.83M | -$2.03M | -20.6% | Dec 31, 2019 | 10-K | 2021-02-25 |
| Q3 2019 | $8.34M | -$23.3M | -73.6% | Sep 30, 2019 | 10-Q | 2019-10-30 |
| Q2 2019 | $8.78M | -$24.3M | -73.5% | Jun 30, 2019 | 10-Q | 2019-07-24 |
| Q1 2019 | $9.32M | -$25.4M | -73.1% | Mar 31, 2019 | 10-Q | 2019-05-02 |
| Q4 2018 | $9.86M | -$26.6M | -72.9% | Dec 31, 2018 | 10-K | 2020-03-26 |
| Q3 2018 | $31.6M | -$6.53M | -17.1% | Sep 30, 2018 | 10-Q/A | 2018-11-13 |
| Q2 2018 | $33.1M | -$6.77M | -17% | Jun 30, 2018 | 10-Q | 2018-08-08 |
| Q1 2018 | $34.7M | -$6.93M | -16.6% | Mar 31, 2018 | 10-Q | 2018-05-03 |
| Q4 2017 | $36.4M | -$6.89M | -15.9% | Dec 31, 2017 | 10-K | 2019-03-18 |
| Q3 2017 | $38.1M | Sep 30, 2017 | 10-Q | 2017-10-26 | ||
| Q2 2017 | $39.9M | Jun 30, 2017 | 10-Q | 2017-08-01 | ||
| Q1 2017 | $41.6M | Mar 31, 2017 | 10-Q | 2017-05-04 | ||
| Q4 2016 | $43.3M | -$5.67M | -11.6% | Dec 31, 2016 | 10-K | 2018-03-01 |
| Q4 2015 | $49M | Dec 31, 2015 | 10-K | 2017-03-24 |