PROPERTY AND EQUIPMENT - SCHEDULE OF PROPERTY AND EQUIPMENT (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and Equipment, Total	$ 9,733	$ 9,686
Less accumulated depreciation	(5,321)	(5,097)
Property and equipment, net	4,412	4,589
Computer Equipment And Purchased Software
Property, Plant and Equipment [Line Items]
Property and Equipment, Total	3,571	3,564
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property and Equipment, Total	959	923
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment, Total	1,365	1,361
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and Equipment, Total	$ 3,838	$ 3,838