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SHARE-BASED COMPENSATION (Tables) | 12 Months Ended
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Dec. 31, 2022
STOCK-BASED COMPENSATION |
Schedule of Common Stock Options |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ |  | ​ |  | Weighted | ​ | Remaining | ​ | ​ | ​
​ | ​ | Number | ​ | Average | ​ | Contractual | ​ | Aggregate
​ | ​ | of Stock | ​ | Exercise | ​ | Term | ​ | Intrinsic
​ | ​ | Options | ​ | Price | ​ | (in years) | ​ | Value
Options outstanding at January 1, 2022 |  | 3,221,956 | ​ | $ | 2.19 |  |  |  | ​ |
Granted |  | 434,598 | ​ |  | 7.71 |  |  |  | ​ |
Exercised |  | (103,319) | ​ |  | 1.81 |  |  |  | ​ |
Canceled/Forfeited |  | (50,000) | ​ |  | 8.72 |  |  |  | ​ |
Expired |  | — | ​ |  | — |  |  |  | ​ |
Options outstanding at December 31, 2022 |  | 3,503,235 | ​ | $ | 2.80 |  | 4.79 | ​ | $ | 17,117,870
Options exercisable at December 31, 2022 |  | 2,816,558 | ​ | $ | 1.87 |  | 3.82 | ​ | $ | 16,015,085
Schedule of compensation expense |
​ | ​ | ​ | ​ | ​ | ​ | ​
(In thousands) | ​ | Year Ended
​ | ​ | December 31,
Compensation Expense | ​ | 2022 | ​ | 2021
Stock options | ​ | $ | 1,150 | ​ | $ | 649
Restricted and performance-based shares | ​ |  | 543 | ​ |  | 317
​ | ​ | $ | 1,693 | ​ | $ | 966
​
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2022 | ​ | 2021
Expected volatility |  | 68.38 | % | ​ | 65.99 | %
Expected dividend yield |  | — | % | ​ | — | %
Expected term (in years) |  | 6.00 |  | ​ | 6.00 | ​
Weighted average risk-free rate |  | 2.56 | % | ​ | 0.97 | %
​
Schedule of weighted-average grant date fair value of options granted | Therefore, the weighted-average grant date fair value of options granted is as follows for the two years ended December 31, 2022:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2022 | ​ | 2021
Weighted average grant date fair value | ​ | $ | 4.39 | ​ | $ | 5.68

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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