Annual report pursuant to Section 13 and 15(d)

Summary of Income Tax Current and Deferred Provision (Benefit) (Detail)

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Summary of Income Tax Current and Deferred Provision (Benefit) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Current:      
Federal     $ (138)
State $ 30 $ 27 31
Foreign 87 25 (27)
Total current income tax provision (benefit) 117 52 (134)
Deferred:      
Federal 61 60 72
State     (118)
Foreign     16
Total deferred income tax provision (benefit) 61 60 (30)
Total income tax provision (benefit) $ 178 $ 112 $ (164)