Quarterly report pursuant to Section 13 or 15(d)

Product Warranties (Details)

v3.5.0.2
Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Changes in Company's standard product warranty reserve [Roll Forward]        
Total product warranty reserve at the beginning of the period $ 439 $ 548 $ 436 $ 505
Warranty expense to cost of revenue 33 56 67 153
Utilization (12) (84) (43) (138)
Total product warranty reserve at the end of the period $ 460 $ 520 $ 460 $ 520