SELECTED BALANCE SHEET COMPONENTS - INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Amortization of Intangible Assets	$ 100		$ 200
Immaterial amortization amount (less than $0.1 million)		$ 100		$ 100
Intangible assets, net
Total	2,987		2,987
Estimated future amortization expense
2015	70		70
2016	280		280
2017	280		280
2018	280		280
2019	280		280
Thereafter	1,797		1,797
Total	2,987		2,987
Commercial rights
Intangible assets, net
Commercial rights	3,360		3,360		$ 3,360
Less: Accumulated amortization	(373)		(373)		(163)
Total	2,987		2,987		3,197
Estimated future amortization expense
Total	$ 2,987		$ 2,987		$ 3,197