SELECTED BALANCE SHEET COMPONENTS - PROPERTY PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Property and equipment, net:
Total property and equipment, gross	$ 10,311		$ 9,687
Less: Accumulated depreciation	(5,918)		(5,638)
Total, net	4,393		4,049
Depreciation and amortization	445	$ 328
Equipment and computers
Property and equipment, net:
Total property and equipment, gross	3,185		3,280
Furniture and fixtures
Property and equipment, net:
Total property and equipment, gross	931		931
Computer Equipment
Property and equipment, net:
Total property and equipment, gross	2,662		2,662
Building improvements and leasehold improvements
Property and equipment, net:
Total property and equipment, gross	2,393		2,393
Construction in progress
Property and equipment, net:
Total property and equipment, gross	$ 1,140		$ 421