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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Compensation |
Schedule of weighted-average assumptions used in determining fair value of share based awards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year ended |  | ​ |  | ​ |  | ​ |
December 31, | ​ | 2024 | ​ | 2023 | ​ | 2022 |
Assumptions |  |  |  |  |  |  | ​
Dividend yield |  | 0 | % | 0 | % | 0 | %
Risk free interest rate |  | 4.24%-4.29 | % | 3.69%-4.89 | % | 1.84%-4.27 | %
Expected volatility |  | 77.69%-80.62 | % | 71.73%-94 | % | 91%-94 | %
Expected lives |  | 1.5 years |  | 1.5-2.0 years |  | 1.5-2.75 years | ​
Schedule of the activity for stock options issued | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted
​ | ​ | ​ | ​ | Average
Stock Options and Stock Appreciation Rights | ​ | Shares | ​ | Exercise Price
Outstanding at December 31, 2021 |  | 2,604,023 | ​ | $ | 1.03
-Cancelled |  | (11,781) | ​ | $ | 3.75
-Exercised |  | (583,273) | ​ | $ | 1.15
-Granted (1) |  | 381,181 | ​ | $ | 4.33
Outstanding at December 31, 2022 |  | 2,390,150 | ​ | $ | 1.51
-Cancelled |  | (48,268) | ​ | $ | 5.67
-Exercised |  | (296,973) | ​ | $ | 2.68
-Granted (2) |  | 602,526 | ​ | $ | 10.02
Outstanding at December 31, 2023 | ​ | 2,647,435 | ​ | $ | 3.31
-Cancelled | ​ | (10,176) | ​ | $ | 4.54
-Exercised | ​ | (39,402) | ​ | $ | 7.24
-Granted (3) | ​ | 133,371 | ​ | $ | 10.85
Outstanding at December 31, 2024 |  | 2,731,228 | ​ | $ | 3.63
​
(1) | Options to purchase 381,181 shares were granted in 2022, of which options to purchase 40,588 shares vested immediately in 2022 and the remainder vested 50% immediately and 50% one year after the date of the grants.
(2) | Options to purchase 584,826 shares were granted in 2023, of which options to purchase 337,727 shares vested immediately in 2023 and the remainder vested 50% immediately and 50% one year after the date of the grants. In addition, 17,700 stock appreciation rights were granted in January 2023 with a six- month vesting period.
(3) | Options to purchase 133,371 shares were granted in 2024, of which options to purchase 111,975 shares vested immediately in 2024 and the remainder vested 50% immediately and 50% one year after the date of the grants.
Schedule of weighted average contractual life in years and the weighted average exercise price | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Remaining | ​ | Weighted
​ | ​ | Number of | ​ | Contractual | ​ | Average
December 31, 2024 | ​ | Options | ​ | Life (Years) | ​ | Exercise Price
Options outstanding and vested |  | 2,713,522 |  | 3.26 | ​ | $ | 3.55
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Remaining | ​ | Weighted
​ | ​ | Number of | ​ | Contractual | ​ | Average
December 31, 2023 | ​ | Options | ​ | Life(Years) | ​ | Exercise Price
Options outstanding and vested |  | 2,400,336 |  | 4.47 | ​ | $ | 2.60
Schedule of intrinsic value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022
Intrinsic value of options vested | ​ | $ | — | ​ | $ | 2,886,080 | ​ | $ | 1,249,506
Intrinsic value of options exercised | ​ | $ | 184,282 | ​ | $ | 2,565,056 | ​ | $ | 4,051,422
​

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -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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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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