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PREFERRED STOCK AND DETACHABLE WARRANTS (Details 2) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at beginning of period $ 1,481,692 $ 2,245,408
Change in valuation of warrants 959,077 (44,162)
Balance at end of period $ 2,440,769 $ 2,201,246