v2.4.0.8
Component of Accrued Warranty Expenses (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Warranty Liability [Line Items]    
Accrued warranty beginning balance $ 690 $ 564
Warranty costs incurred (1,193) (1,214)
Provision for warranty claims 1,240 1,340
Accrued warranty ending balance $ 737 $ 690