Annual report pursuant to Section 13 and 15(d)

Balance Sheet Components - Components of Accrued Liabilities (Detail)

v2.4.1.9
Balance Sheet Components - Components of Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Accrued Liabilities Current [Abstract]    
Payroll and employee related expenses $ 2,808us-gaap_AccruedEmployeeBenefitsCurrent $ 2,682us-gaap_AccruedEmployeeBenefitsCurrent
Professional services 331us-gaap_AccruedProfessionalFeesCurrent 150us-gaap_AccruedProfessionalFeesCurrent
Other accrued expenses 41us-gaap_OtherAccruedLiabilitiesCurrent 329us-gaap_OtherAccruedLiabilitiesCurrent
Total accrued liabilities $ 3,180us-gaap_AccruedLiabilitiesCurrent $ 3,161us-gaap_AccruedLiabilitiesCurrent