INCOME TAXES (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Income Taxes
Provision or benefit for federal or state income taxes	$ 0
Research Tax Credit Carryforward [Member]
Income Taxes
Research and development tax credit carryforwards	1,010
Domestic Tax Authority [Member]
Income Taxes
Net operating loss carryforwards	77,456
State and Local Jurisdiction [Member]
Income Taxes
Net operating loss carryforwards	$ 69,682