Annual report pursuant to Section 13 and 15(d)

Balance Sheet Components - Components of Accrued Liabilities (Detail)

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Balance Sheet Components - Components of Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Accrued Liabilities [Line Items]    
Payroll and employee related expenses $ 2,037 $ 1,302
Professional services 122 195
Other accrued expenses 98 240
Total accrued liabilities $ 2,257 $ 1,737