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INCOME TAXES (Summary of Operating Loss Carryforwards) (Details) - Internal Revenue Service (IRS) [Member] - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Operating Loss Carryforwards $ 26,890 $ 967
Tax Year 2036 [Member]    
Operating Loss Carryforwards 17,781 $ 967
Tax Year 2037 [Member]    
Operating Loss Carryforwards $ 9,109