INCOME TAXES (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Valuation Allowance		$ 37,714	$ 56,723
Deferred Tax Assets, Operating Loss Carryforwards		1,800	2,700
Operating Loss Carryforwards Federal		148,000
Operating Loss Carryforwards State And Local		14,000
Tax Credit Carryforwards Research And Alternative Minimum Tax		$ 6,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		34.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		$ (19,159)
Scenario, Plan [Member]
Tax Credit Carryforward [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%