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FAIR VALUE MEASUREMENT (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]    
Cash equivalents $ 0 $ 0
Warrant liability 4,639,655 4,189,388
Contingent consideration 0 605,223
Total 4,639,655 4,794,611
Change in Level 3 Instruments (Contingent consideration) [Abstract]    
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]    
Cash equivalents 0 0
Warrant liability 0 0
Contingent consideration 0 0
Total 0 0
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]    
Cash equivalents 0 0
Warrant liability 0 0
Contingent consideration 0 0
Total 0 0
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]    
Cash equivalents 0 0
Warrant liability 4,639,655 4,189,388
Contingent consideration 0 605,223
Total 4,639,655 4,794,611
Change in Level 3 Instruments (Contingent consideration) [Abstract]    
Opening balance 4,794,611  
Additions during the period 450,267  
Paid/settlements (605,223)  
Total gains recognized in Statement of Operations 0  
Closing balance $ 4,639,655 $ 4,794,611