XML 25 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Intangible Assets - Summary of Amortization Expenses of Purchased Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
Amortization of purchased intangible assets $ 140 $ 140
Cost of net revenues [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Amortization of purchased intangible assets 84 84
General and administrative expenses [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Amortization of purchased intangible assets 140 140
Total amortization expense [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Amortization of purchased intangible assets $ 224 $ 224