| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2023 | $0 | $0 | Dec 31, 2023 | 10-K | 2024-02-22 | |
| Q4 2022 | $0 | -$2.7M | -100% | Dec 31, 2022 | 10-K | 2024-02-22 |
| Q4 2021 | $2.7M | $0 | 0% | Dec 31, 2021 | 10-K | 2024-02-22 |
| Q4 2020 | $2.7M | $0 | 0% | Dec 31, 2020 | 10-K | 2024-02-22 |
| Q4 2019 | $2.7M | $0 | 0% | Dec 31, 2019 | 10-K | 2023-02-16 |
| Q4 2018 | $2.7M | $0 | 0% | Dec 31, 2018 | 10-K | 2022-02-24 |
| Q4 2017 | $2.7M | -$1.4M | -34.1% | Dec 31, 2017 | 10-K | 2021-02-25 |
| Q4 2016 | $4.1M | -$600K | -12.8% | Dec 31, 2016 | 10-K | 2020-02-19 |
| Q4 2015 | $4.7M | +$700K | +17.5% | Dec 31, 2015 | 10-K | 2018-02-28 |
| Q4 2014 | $4M | +$100K | +2.56% | Dec 31, 2014 | 10-K | 2017-03-01 |
| Q4 2013 | $3.9M | +$3.5M | +875% | Dec 31, 2013 | 10-K | 2016-03-10 |
| Q4 2012 | $400K | +$400K | Dec 31, 2012 | 10-K | 2015-03-04 | |
| Q4 2011 | $0 | -$700K | -100% | Dec 31, 2011 | 10-K | 2014-03-12 |
| Q4 2010 | $700K | Dec 31, 2010 | 10-K | 2013-03-12 |