Annual report pursuant to Section 13 and 15(d)

Product Warranties (Details)

v3.19.1
Product Warranties (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Changes in Company's product warranty reserve    
Total product warranty reserve, beginning of period $ 300 $ 395
NetProductWarrantyExpense (98) 57
Utilization (72) (152)
Total product warranty reserve, end of period $ 130 $ 300