Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Details)

v3.19.2
Capital Stock (Details) - USD ($)
1 Months Ended
Jul. 31, 2019
Jan. 26, 2019
Jan. 09, 2019
May 31, 2019
Jun. 30, 2019
Jan. 31, 2019
Jan. 14, 2019
Jul. 17, 2018
Class of Warrant or Right [Line Items]                
Warrants, number of shares of common stock with right to purchase (in shares)     933,334       933,334  
Warrants, exercise price (usd per share)     $ 0.2475       $ 0.2475  
Share issued upon conversion of convertible note (in shares)       1,539,815        
H.C. Wainwright, underwriter                
Class of Warrant or Right [Line Items]                
Warrants, number of shares of common stock with right to purchase (in shares)   1,065,217 13,333,334     1,065,217    
Warrants, exercise price (usd per share)   $ 0.253 $ 0.225     $ 0.253    
Public Offering                
Class of Warrant or Right [Line Items]                
Warrants, number of shares of common stock with right to purchase (in shares)   15,217,392            
Warrants, exercise price (usd per share)   $ 0.23            
Proceeds received   $ 2,975,000 $ 2,437,000          
Stock issuance costs   $ 525,000 $ 563,000          
Convertible Note                
Class of Warrant or Right [Line Items]                
Convertible note         $ 3,100,000      
Conversion price (in usd per share)               $ 0.80
Convertible Debt, Adjusted Conversion Price Portion                
Class of Warrant or Right [Line Items]                
Conversion price (in usd per share)       $ 0.2273        
Convertible promissory note to accredited investor | Convertible Note                
Class of Warrant or Right [Line Items]                
Convertible note       $ 350,000        
Subsequent events                
Class of Warrant or Right [Line Items]                
Share issued upon conversion of convertible note (in shares) 2,571,429              
Subsequent events | Convertible promissory note to accredited investor | Convertible Note                
Class of Warrant or Right [Line Items]                
Convertible note $ 375,000