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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Provision (benefit) for income taxes $ 1,915 $ (786)  
Effective Income Tax Rate, Continuing Operations 66.00% (5.00%)  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%   35.00%