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LEASE LIABILITIES AND RIGHT OF USE ASSETS - Lease expenses (Details) - USD ($)
 3 Months Ended 39 Months Ended
Jan. 01, 2019
Mar. 31, 2020
Mar. 31, 2020
Finance lease expenses:      
Depreciation/amortization expense   $ 14,000  
Interest on lease liabilities   1,000  
Finance lease expense   15,000  
Operating lease expense $ 1,500 64,000 $ 300
Short-term lease expense   31,000  
Total lease expenses   $ 110,000