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v3.25.1

Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2025
Stock-Based Compensation |
Summary of stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | Weighted Average |  | Aggregate
​ | ​ | ​ | ​ | Average Exercise | ​ | Remaining | ​ | Intrinsic
​ |  | Options |  | Price |  | Contractual Life |  | Value
Balance - December 31, 2023 |  | 175,049 | ​ | $ | 45.55 |  | 7.70 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Granted |  | 420 | ​ | ​ | 5.25 |  | ​ | ​ |  | ​
Expired |  | (435) | ​ | ​ | 3,498.79 |  | ​ | ​ |  | ​
Forfeited |  | — | ​ | ​ | — |  | ​ | ​ |  | ​
Balance - December 31, 2024 | ​ | 175,034 | ​ | ​ | 36.88 | ​ | 6.72 years | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Expired | ​ | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​
Forfeited | ​ | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - March 31, 2025 - outstanding |  | 175,034 | ​ | $ | 36.88 |  | 6.47 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - March 31, 2025 - exercisable |  | 118,366 | ​ | $ | 47.50 |  | 5.84 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Grant date fair value of options granted – year ended December 31, 2024 | ​ | ​ | ​ | $ | 1,526 |  |  | ​ |  |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average grant date fair value – year ended December 31, 2024 | ​ | ​ | ​ | $ | 3.63 |  |  | ​ |  |

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