SELECTED BALANCE SHEET COMPONENTS - INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Balance Sheet Related Disclosures [Abstract]
Amortization of Intangible Assets	$ 100
Intangible assets, net
Total	2,847
Estimated future amortization expense
2015	210
2016	280
2017	280
2018	280
2019	280
Thereafter	1,517
Total	2,847
Commercial rights
Intangible assets, net
Commercial rights	3,360	$ 3,360
Less: accumulated amortization		(443)	$ (513)
Total	2,847	2,917
Estimated future amortization expense
Total	$ 2,847	$ 2,917