INCOME TAXES (Summary of Amounts and Expiration Dates of Operating Loss and Tax Credit Carryforwards) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards - Federal AMT	$ 5,010
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	33,820
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 215,572