Quarterly report pursuant to Section 13 or 15(d)

Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail)

v2.4.0.8
Product Warranty Liability - Reconciliation of the Changes in Product Warranty Liability (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Guarantees [Abstract]        
Balance at beginning of period $ 299 $ 174 $ 408 $ 215
(Income) expense for product warranties (47) 65 11 73
Product warranty claims paid (29) (79) (196) (128)
Balance at end of period $ 223 $ 160 $ 223 $ 160