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DISCONTINUED OPERATIONS - Summary of Cash Flow (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net cash provided by (used in) operating activities $ (5,130) $ 1,153
Net cash provided by (used in) investing activities 6 (1,275)
Net cash provided by (used in) financing activities 0 0
Kentucky Properties | Discontinued Operations    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net cash provided by (used in) operating activities (5,130) 1,153
Net cash provided by (used in) investing activities $ 6 $ (1,275)