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Derivative Liability (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]        
Unrealized gains (losses) on derivative liability $ (68,000) $ 460,000 $ (52,000) $ 82,000