Quarterly report pursuant to Section 13 or 15(d)

Capital Stock (Details)

v3.19.3
Capital Stock (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 26, 2019
Jan. 09, 2019
May 31, 2019
Sep. 30, 2019
Sep. 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)   31,111         31,111  
Warrants, exercise price (usd per share)   $ 7.43   $ 104.18 $ 104.18   $ 7.43  
Share issued upon conversion of convertible note     51,327 173,557 173,557      
H.C. Wainwright, underwriter                
Class of Warrant or Right [Line Items]                
Warrants, number of shares of common stock with right to purchase (in shares) 35,507 444,444       35,507    
Warrants, exercise price (usd per share) $ 7.59 $ 6.75       $ 7.59    
Public Offering                
Class of Warrant or Right [Line Items]                
Warrants, number of shares of common stock with right to purchase (in shares) 507,246              
Warrants, exercise price (usd per share) $ 6.9              
Amount of Principal Exchanged $ 2,975,000 $ 2,437,000            
Stock issuance costs $ 525,000 $ 563,000            
Convertible Note                
Class of Warrant or Right [Line Items]                
Amount of principal exchanged       $ 2,300,000 $ 2,300,000      
Conversion price (in usd per share)               $ 24.00
Convertible Debt, Adjusted Conversion Price Portion                
Class of Warrant or Right [Line Items]                
Conversion price (in usd per share)     $ 6.82          
Convertible Promissory Note to Accredited Investor | Convertible Note                
Class of Warrant or Right [Line Items]                
Amount of principal exchanged     $ 350,000 $ 612,175 $ 612,175