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COMMITMENTS (Schedule of Supplemental Information Related to Leases) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Operating lease right-of-use assets $ 1,858
Operating lease liabilities $ 1,882  
Weighted average remaining lease term 2 years 2 months 19 days  
Weighted average discount rate 5.54%