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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
INCOME TAXES      
Expected federal income tax rate (as a percent) 21.00%   21.00%
Valuation allowance $ 35,429   $ 35,429
Net operating loss carry-forwards 281,300   $ 280,000
Operating loss carry forward subject to expiration 261,000    
Operating loss carry forward not subject to expiration 19,000    
Unrecognized tax benefits 0 $ 0  
Change in unrecognized tax benefits $ 0 $ 0