Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Details - Accrued Expenses (Detail)

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Balance Sheet Details - Accrued Expenses (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract]    
Accrued technology license payments $ 3,000 $ 3,000
Accrued professional fees 564 390
Accrued litigation costs 306 0
Other 1,615 895
Total $ 5,485 $ 4,285