Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION (Details 3)

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REVENUE RECOGNITION (Details 3) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Revenue Recognition    
Product warranty liabilities $ 1,285 $ 1,019
Product warrant liabilities Accruals 237 92
Product warrant liabilities settlements (181) (92)
Balance, end of period $ 1,341 $ 1,019