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Cash and Cash Equivalents (Tables) | 6 Months Ended
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Jun. 30, 2023
Cash and Cash Equivalents [Abstract] |
Schedule of cash, cash equivalents, and restricted cash | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​
(in thousands) | June 30, 2023 |  | December 31, 2022
Cash | $ | 9,698 | ​ | $ | 60,315
Money market funds |  | 41,776 | ​ |  | 46,308
Total cash and cash equivalents | ​ | 51,474 | ​ | ​ | 106,623
Restricted cash included in other assets |  | 1,281 | ​ |  | 1,313
Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statements of cash flows | $ | 52,755 | ​ | $ | 107,936

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