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Equity - Equity Incentive Plan Options and Inducement Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-based compensation |  |  |
Outstanding shares, beginning balance | 2,759 | 2,779 |
Exercised (in shares) |  | (20) |
Forfeited/Expired (in shares) | (307) |  |
Outstanding shares, ending balance | 2,452 | 2,759 | 2,779
Exercisable (in shares) | 1,872 | 2,024 |
Outstanding - Weighted Average Exercise Price (in dollars per share) | $ 2.07 | $ 2.05 |
Exercised - Weighted Average Exercise Price (in dollars per share) |  | 0.54 |
Forfeited/Expired - Weighted Average Exercise Price (in dollars per share) | 2.25 |  |
Outstanding - Weighted Average Exercise Price (in dollars per share) | 2.04 | 2.07 | $ 2.05
Exercisable - Weighted Average Exercise Price (in dollars per share) | $ 1.7 | $ 1.71 |
Outstanding - Weighted Average Remaining Contractual Life (in years) | 4 years 11 months 1 day | 5 years 4 months 17 days | 6 years 5 months 4 days
Exercisable - Weighted Average Remaining Contractual Life (in years) | 4 years 6 months 18 days | 4 years 10 months 13 days |
Aggregate Intrinsic Value, Outstanding beginning of year | $ 180 |  |
Aggregate Intrinsic Value, Exercised |  | $ 20 |
Aggregate Intrinsic Value, Forfeited/Expired | 18 |  |
Aggregate Intrinsic Value, Outstanding end of period | 496 | 180 |
Aggregate Intrinsic Value, Exercisable end of period | 485 | 171 |
Total unrecognized compensation | 286 |  |
Equity Incentive Plan |  |  |
Share-based compensation |  |  |
Compensation expense | $ 113 | $ 174 |
Contractual life | 10 years |  |
Non-Qualified Stock Option |  |  |
Share-based compensation |  |  |
Outstanding shares, beginning balance | 491 | 341 |
Granted (in shares) |  | 300 |
Exercised (in shares) |  | (50) |
Forfeited/Expired (in shares) |  | (100) |
Outstanding shares, ending balance | 491 | 491 | 341
Exercisable (in shares) | 441 | 391 |
Outstanding - Weighted Average Exercise Price (in dollars per share) | $ 1.53 | $ 1.8 |
Granted - Weighted Average Exercise Price (in dollars per share) |  | 1.11 |
Exercised - Weighted Average Exercise Price (in dollars per share) |  | 1.31 |
Forfeited/Expired - Weighted Average Exercise Price (in dollars per share) |  | 1.31 |
Outstanding - Weighted Average Exercise Price (in dollars per share) | 1.53 | 1.53 | $ 1.8
Exercisable - Weighted Average Exercise Price (in dollars per share) | $ 1.6 | $ 1.69 |
Outstanding - Weighted Average Remaining Contractual Life (in years) | 3 years 14 days | 4 years 14 days | 6 years 3 days
Exercisable - Weighted Average Remaining Contractual Life (in years) | 3 years 3 months 14 days | 4 years 7 months 9 days |
Aggregate Intrinsic Value, Outstanding beginning of year | $ 30 |  |
Aggregate Intrinsic Value, Outstanding end of period | 119 | $ 30 |
Aggregate Intrinsic Value, Exercisable end of period | $ 93 | $ 10 |

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