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Accrued Expenses and Other Current Liabilities | 6 Months Ended
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Jun. 30, 2023
Payables and Accruals [Abstract] |
Accrued Expenses and Other Current Liabilities | Note 6. Accrued Expenses and Other Current Liabilities The components of accrued expenses and other current liabilities consisted of the following: ​
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(in thousands) | June 30, 2023 |  | December 31, 2022
Employee compensation and related costs | $ | 3,019 | ​ | $ | 3,115
Construction in process | ​ | 3,115 | ​ | ​ | 229
Deferred income received under joint development agreements | ​ | — | ​ | ​ | 4,189
Professional and consulting services | ​ | 699 | ​ | ​ | 1,566
Income taxes payable | ​ | 858 | ​ | ​ | 1,422
Other |  | 1,746 | ​ |  | 750
Accrued expenses and other current liabilities | $ | 9,437 | ​ | $ | 11,271

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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