Annual report pursuant to Section 13 and 15(d)

Accrued Warranty Reserve (Details)

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Accrued Warranty Reserve (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2023
Mar. 31, 2022
Accrued Warranty Reserve      
Maximum period of product warranties   24 months  
Balance, beginning of the period   $ 1,483 $ 5,850
Standard warranty provision   592 646
Deductions for warranty claims   (499) (5,013)
Balance, end of the period $ 5,850 1,576 $ 1,483
Accrual related to reliability repair programs $ 4,900 $ 0