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Fair Value Measurements - Summary of Change in Level 3 Warrant Liability Value (Details) - Warrant Liability [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Warrant liability    
Beginning balance $ 7 $ 6,929
Change in fair value of warrants (6) (2,418)
Reclassification to equity   (4,504)
Ending balance $ 1 $ 7