Quarterly report pursuant to Section 13 or 15(d)

Accrued Warranty Reserve (Details)

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Accrued Warranty Reserve (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Mar. 31, 2021
Accrued Warranty Reserve      
Maximum period of product warranties 24 months    
Balance, beginning of the period $ 5,850   $ 1,523
Standard warranty provision 44   450
Accrual related to reliability repair programs   $ 4,900 4,945
Deductions for warranty claims (1,990)   (1,068)
Balance, end of the period $ 3,904 $ 5,850 $ 5,850