Quarterly report pursuant to Section 13 or 15(d)

Organization, Description of Business and Basis of Presentation - Additional Information (Details)

v3.19.2
Organization, Description of Business and Basis of Presentation - Additional Information (Details) - USD ($)
1 Months Ended
Sep. 18, 2018
May 31, 2019
Jun. 30, 2019
Jun. 20, 2019
Dec. 15, 2018
Jul. 17, 2018
Debt Instrument [Line Items]            
Share issued upon conversion of convertible note (in shares)   1,539,815        
NDX | Credit Agreement            
Debt Instrument [Line Items]            
Conversion price (in usd per share)         $ 0.606  
Advance from related party $ 1,500,000          
Stated interest rate (percent) 10.75%       21.00%  
Convertible Note            
Debt Instrument [Line Items]            
Term note, principal balance           $ 2,625,000
Conversion price (in usd per share)           $ 0.80
Convertible note     $ 3,100,000      
Interest rate upon reset due to default (percent)       22.00%    
Increase to outstanding balance upon default (percent)       15.00%    
Increase to outstanding balance upon default       $ 408,000    
Stated interest rate (percent)           10.00%
Convertible Debt, Adjusted Conversion Price Portion            
Debt Instrument [Line Items]            
Term note, principal balance   $ 1,250,000        
Conversion price (in usd per share)   $ 0.2273        
Convertible promissory note to accredited investor | Convertible Note            
Debt Instrument [Line Items]            
Convertible note   $ 350,000