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Stock Incentive Plans (Tables) | 6 Months Ended
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Jun. 30, 2023
Stock Incentive Plans |
Schedule of stock option activity | A summary of the Company’s stock option activity and related information follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | Aggregate
​ | ​ | ​ | ​ | Weighted- | ​ | Remaining | ​ | Intrinsic
​ | ​ | ​ | ​ | Average | ​ | Contractual | ​ | Value
​ |  | Shares |  | Exercise Price |  | Term (years) |  | (in thousands)
Outstanding at December 31, 2022 |  | 2,253,431 | ​ | $ | 15.43 |  | 8.57 | ​ | $ | 9,733
Granted |  | 1,420,550 | ​ | $ | 13.28 | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (61,598) | ​ | $ | 5.03 | ​ | ​ | ​ | ​ | ​
Cancelled or forfeited |  | (428,815) | ​ | $ | 14.16 | ​ | ​ | ​ | ​ | ​
Expired | ​ | (523) | ​ | $ | 138.60 | ​ | ​ | ​ | ​ | ​
Outstanding at June 30, 2023 | ​ | 3,183,045 | ​ | $ | 14.83 | ​ | 8.66 | ​ | $ | 2,184
Vested and exercisable at June 30, 2023 | ​ | 961,989 | ​ | $ | 21.44 | ​ | 7.76 | ​ | $ | 739
Vested and expected to vest at June 30, 2023 |  | 3,183,045 | ​ | $ | 14.83 | ​ | 8.66 | ​ | $ | 2,184
​

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