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Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Accrued Expenses and Other Current Liabilities [Abstract]      
Warranty obligations $ 66 $ 59 $ 63
Compensation and related benefits 1,992 2,052  
State sales, use and other taxes 3,739 3,697  
Professional fees and other 742 569  
Total accrued expenses and other current liabilities $ 6,539 $ 6,377