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LEASES - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Operating Leased Assets [Line Items]          
Operating lease right of use asset $ 780   $ 780   $ 922
Current portion of operating lease liability 273   273   288
Operating lease, liability, noncurrent 618   618   $ 758
Total Lease Expense $ 163 $ 142 $ 333 $ 280  
Minimum          
Operating Leased Assets [Line Items]          
Term of contract 1 year   1 year    
Maximum          
Operating Leased Assets [Line Items]          
Term of contract 4 years   4 years    
Renewal term 5 years   5 years