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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2024
Stock-Based Compensation |
Summary of stock option activity | A summary of stock option activity for the three months ended March 31, 2024 and the year ended December 31, 2023 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | Weighted Average |  | Aggregate
​ | ​ | ​ | ​ | Average Exercise | ​ | Remaining | ​ | Intrinsic
​ |  | Options |  | Price |  | Contractual Life |  | Value
Balance - December 31, 2022 |  | 2,295,898 | ​ | $ | 3.53 |  | 6.44 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Granted |  | 2,195,000 | ​ | ​ | 0.59 |  | ​ | ​ |  | ​
Expired |  | (104,270) | ​ | ​ | 14.73 |  | ​ | ​ |  | ​
Forfeited |  | (10,847) | ​ | ​ | 1.11 |  | ​ | ​ |  | ​
Balance - December 31, 2023 | ​ | 4,375,781 | ​ | ​ | 1.80 | ​ | 7.70 years | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Expired | ​ | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​
Forfeited | ​ | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - March 31, 2024 - outstanding |  | 4,375,781 | ​ | $ | 1.80 |  | 7.45 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance - March 31, 2024 - exercisable |  | 1,611,399 | ​ | $ | 3.80 |  | 5.59 years | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Grant date fair value of options granted – year ended December 31, 2023 | ​ | ​ | ​ | $ | 873,140 |  |  | ​ |  |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average grant date fair value – year ended December 31, 2023 | ​ | ​ | ​ | $ | 0.40 |  |  | ​ |  |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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