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Stock Options and Restricted Stock - Restricted Stock Awards (Details) - Restricted Stock Awards - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Number of Shares |  |  |  |
Granted |  |  | 0 |
Compensation expense |  |  |  |
Compensation expense recognized | $ 0 | $ 2,000 | $ 0 | $ 12,000
Shares issued for services on board of directors |  |  | 23,495 |
Value of shares issued for services on board of directors |  |  | $ 369,000 |

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