Quarterly report pursuant to Section 13 or 15(d)

Product Warranties (Details)

v3.6.0.2
Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Changes in Company's standard product warranty reserve [Roll Forward]        
Total product warranty reserve at the beginning of the period $ 460 $ 520 $ 436 $ 505
Warranty expense to cost of revenue 12 75 80 229
Utilization (2) (23) (46) (162)
Total product warranty reserve at the end of the period $ 470 $ 572 $ 470 $ 572