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PREFERRED STOCK AND DETACHABLE WARRANTS (Details 2) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 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 1,705,094 431,751
Balance at end of period $ 3,186,786 $ 2,677,159