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Accrued Expenses | 3 Months Ended
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Mar. 31, 2022
Accrued Expenses |
Accrued Expenses | 6. Accrued Expenses Accrued expenses consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ |  | 2022 |  | 2021
Accrued contracted costs | ​ | $ | 2,073 | ​ | $ | 760
Accrued compensation | ​ | ​ | 713 | ​ | ​ | 1,958
Accrued professional fees | ​ | ​ | 638 | ​ | ​ | 268
Accrued other | ​ | ​ | 428 | ​ | ​ | 295
Total | ​ | $ | 3,852 | ​ | $ | 3,281
​

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