Annual report pursuant to Section 13 and 15(d)

Product Warranties (Details)

v3.21.1
Product Warranties (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Changes in Company's product warranty reserve    
Total product warranty reserve, beginning of period $ 160 $ 130
NetProductWarrantyExpense 72 111
Utilization (107) (81)
Total product warranty reserve, end of period $ 125 $ 160