PROPERTY AND EQUIPMENT - SCHEDULE OF PROPERTY AND EQUIPMENT (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, total	$ 9,592	$ 9,686
Less accumulated depreciation	(5,524)	(5,097)
Property and equipment, net	4,068	4,589
Computer equipment and purchased software
Property, Plant and Equipment [Line Items]
Property and equipment, total	3,513	3,564
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, total	886	923
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, total	1,340	1,361
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, total	$ 3,853	$ 3,838