Quarterly report pursuant to Section 13 or 15(d)

ACCRUED WARRANTY (Details)

v3.7.0.1
ACCRUED WARRANTY (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning balance $ 3,263 $ 3,430
Additional warranties issued 1,412 1,998
Adjustments for warranties issued in prior fiscal years (4) 140
Settlements (1,510) (2,124)
Ending balance $ 3,161 $ 3,444
Minimum    
Product Warranty Liability [Line Items]    
Product warranty term (in years) 1 year  
Maximum    
Product Warranty Liability [Line Items]    
Product warranty term (in years) 3 years