Benefit (Provision) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Current
Federal		$ 44
State	$ (16)	56
Foreign	(206)	(195)
Total current	(222)	(95)
Total provision for income taxes	$ (222)	$ (95)