Quarterly report pursuant to sections 13 or 15(d)

Changes in Warranty Liability (Detail)

v2.4.0.8
Changes in Warranty Liability (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Product Warranty [Line Items]    
Warranty liability $ 597 $ 346
Provisions for current year sales 46 119
Current period claims (71) (40)
Warranty liability $ 572 $ 425