DEBT - Senior Convertible Note (Details)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 07, 2019
USD ($)
Oct. 04, 2018
USD ($)
Jan. 29, 2018
USD ($)
Jan. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Dec. 31, 2018
day
Debt Instrument [Line Items]                  
Loss on extinguishment of debt         $ 0 $ 0 $ 1,049,166 $ 0  
Amortization of debt discount             382,212 1,171,985  
Note Purchase Agreement and Senior Note Payable                  
Debt Instrument [Line Items]                  
Note payable, gross     $ 4,800,000            
Unamortized discount     1,800,000            
Financing costs     20,000            
Proceeds from notes payable     $ 3,000,000            
Debt interest rate     12.50%            
Amortization of debt discount         0 $ 700,000 0 $ 1,200,000  
New Note                  
Debt Instrument [Line Items]                  
Financing costs   $ 30,000              
Debt interest rate   8.00%              
Principal amount   $ 5,200,000              
Interest rate upon default   18.00%              
Loss on extinguishment of debt   $ 0              
Threshold consecutive trading days | day                 10
Repayments of short-term convertible debt       $ 1,049,167          
Repayment of accrued interest convertible note payable       $ 1,399          
Consideration paid to noteholder $ 250,000                
Convertible note option agreement purchase price         5,200,000   5,200,000    
Convertible note option accrued interest         $ 60,000   $ 60,000