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LEASES - Schedule of Lease Cost (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Leases [Abstract]        
Operating leases $ 89,000 $ 105,000 $ 184,000 $ 210,000
Short-term leases 74,000 65,000 149,000 126,000
Sublease income 0 (28,000) 0 (56,000)
Total Lease Expense $ 163,000 $ 142,000 $ 333,000 $ 280,000
Weighted average remaining lease term of operating leases 2 years 10 months 24 days 3 years 8 months 12 days 2 years 10 months 24 days 3 years 8 months 12 days
Weighted average discount rate of operating leases 9.00% 9.00% 9.00% 9.00%
Cash paid for amounts included in the measurement of operating lease liabilities $ 101,000 $ 56,000 $ 196 $ 138,000