Quarterly report pursuant to Section 13 or 15(d)

Warranty (Details)

v3.4.0.3
Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Warranty [Abstract]    
Product Warranty Period 5 years  
Beginning Balance $ 554 $ 434
Amounts charged to expense 19 142
Actual warranty costs paid (34) (22)
Ending balance $ 539 $ 554