| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2023 | $5.21M | -$623K | -10.7% | Dec 31, 2023 | 10-K | 2024-02-15 |
| Q4 2022 | $5.83M | -$254K | -4.18% | Dec 31, 2022 | 10-K | 2024-02-15 |
| Q4 2021 | $6.08M | +$25K | +0.41% | Dec 31, 2021 | 10-K | 2024-02-15 |
| Q4 2020 | $6.06M | -$6.07M | -50.1% | Dec 31, 2020 | 10-K | 2023-02-10 |
| Q4 2019 | $12.1M | -$217K | -1.76% | Dec 31, 2019 | 10-K | 2022-02-18 |
| Q4 2018 | $12.3M | -$4.42M | -26.4% | Dec 31, 2018 | 10-K | 2021-02-23 |
| Q4 2017 | $16.8M | -$4.19M | -20% | Dec 31, 2017 | 10-K | 2020-02-24 |
| Q4 2016 | $21M | -$3.19M | -13.2% | Dec 31, 2016 | 10-K | 2019-02-08 |
| Q4 2015 | $24.1M | -$1.31M | -5.15% | Dec 31, 2015 | 10-K | 2018-02-09 |
| Q4 2014 | $25.4M | +$3.54M | +16.2% | Dec 31, 2014 | 10-K | 2017-02-14 |
| Q4 2013 | $21.9M | +$2.44M | +12.5% | Dec 31, 2013 | 10-K | 2016-02-12 |
| Q4 2012 | $19.5M | -$117K | -0.6% | Dec 31, 2012 | 10-K | 2015-02-13 |
| Q4 2011 | $19.6M | -$2.3M | -10.5% | Dec 31, 2011 | 10-K/A | 2014-09-04 |
| Q4 2010 | $21.9M | Dec 31, 2010 | 10-K | 2013-02-19 |