Quarterly report pursuant to Section 13 or 15(d)

Organization, Description of Business and Basis of Presentation - 2019 Offerings (Details)

v3.19.3
Organization, Description of Business and Basis of Presentation - 2019 Offerings (Details) - USD ($)
$ / shares in Units, $ in Thousands
Jan. 26, 2019
Jan. 09, 2019
Sep. 30, 2019
Jan. 31, 2019
Jan. 14, 2019
Class of Stock [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   $ 7.43
Warrants, exercise period   5 years      
H.C. Wainwright, underwriter          
Class of Stock [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  
Warrants, exercise period 5 years        
Public Offering          
Class of Stock [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        
Proceeds received $ 2,975 $ 2,437      
Stock issuance costs $ 525 $ 563