Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable and Accrued Expenses - Schedule of Product Warranty Liability (Details) (Parenthetical)

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Accounts Payable and Accrued Expenses - Schedule of Product Warranty Liability (Details) (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
[1]
Dec. 31, 2019
Accrued warranty $ 1,001 [1] $ 807 $ 787 $ 742
Other Long-term Liabilities [Member]        
Accrued warranty $ 140 $ 102    
[1] Includes non-current accrued warranty included in other long-term liabilities at December 31, 2020 and March 31, 2021 of $102 and $140, respectively.