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Description of the Business and Summary of Significant Accounting Policies (Summary of Activity Related to Warranty Liability Included in Other Current Liabilities) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Description of the Business and Summary of Significant Accounting Policies [Abstract]        
Beginning balance $ 416 $ 465 $ 519 $ 615
Warranty accruals and adjustments (127) 242 (227) 100
Warranty claims (7) (2) (10) (10)
Ending balance $ 282 $ 705 $ 282 $ 705