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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Stock-Based Compensation |
Summary of stock-based compensation expense | The following table summarizes stock-based compensation expense, which is included in operating or general and administrative expense, as appropriate, in the Consolidated Statements of Operations and Comprehensive Loss for the years ended December 31, 2023 and 2022 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
​ | ​ | 2023 | ​ | 2022 | ​
Restricted stock unit awards | ​ | $ | — | ​ | $ | 413 | ​
Common stock awards | ​ | ​ | — | ​ | ​ | — | ​
Total compensation expense | ​ | $ | — | ​ | $ | 413 | ​

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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