Quarterly report pursuant to Section 13 or 15(d)

Common Stock (Details)

v3.19.3.a.u2
Common Stock (Details)
$ / shares in Units, $ in Thousands
Sep. 10, 2019
USD ($)
shareholder
$ / shares
shares
Nov. 06, 2019
$ / shares
Sep. 30, 2019
$ / shares
Dec. 31, 2018
$ / shares
Class of Stock [Line Items]        
Common stock, par value | $ / shares     $ 0.001 $ 0.001
Private placement        
Class of Stock [Line Items]        
Common stock, par value | $ / shares $ 0.001      
Issue price per share | $ / shares $ 0.053525 $ 0.014    
Issuance of common stock, net of issuance costs (in shares) | shares 3,269,500      
Cash proceeds $ 175      
Number of shareholders | shareholder 2      
Issuance costs $ 5      
Maximum | Private placement        
Class of Stock [Line Items]        
Value of common stock offered on initial closing date 175      
Value of common stock offered on subsequent closing date $ 575