SELECTED BALANCE SHEET COMPONENTS - PROPERTY PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Property and equipment, net:
Amortization of Intangible Assets	$ 100		$ 200
Total property and equipment, gross	9,474		9,474		$ 7,289
Less: Accumulated depreciation	(4,858)		(4,858)		(4,397)
Total, net	4,616		4,616		2,892
Depreciation	200	$ 100	500	$ 200
Equipment and computers
Property and equipment, net:
Total property and equipment, gross	3,147		3,147		3,135
Furniture and fixtures
Property and equipment, net:
Total property and equipment, gross	931		931		777
Computer Equipment
Property and equipment, net:
Total property and equipment, gross	1,614		1,614		667
Building improvements and leasehold improvements
Property and equipment, net:
Total property and equipment, gross	1,768		1,768		1,691
Construction in progress
Property and equipment, net:
Total property and equipment, gross	$ 2,014		$ 2,014		$ 1,019