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Business Description, Basis of Presentation and Significant Accounting Policies - Warranty Liability (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Business Description, Basis of Presentation and Significant Accounting Policies    
Balance at the beginning of year $ 194 $ 194
Accruals/additions 0 0
Usage/claims 0 0
Balance at end of year $ 194 $ 194