Annual report pursuant to Section 13 and 15(d)

Convertible Preferred Stock and Stockholders' Equity - Alexander settlement agreement (Details) No use

v3.20.4
Convertible Preferred Stock and Stockholders' Equity - Alexander settlement agreement (Details) No use - USD ($)
 12 Months Ended
Nov. 09, 2020
May 18, 2020
May 14, 2020
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]          
Issuance of common stock, net of issuance costs (in shares) 236,375 60,250      
Value of common stock issued       $ 16,156,000 $ 6,149,000
Vendors          
Class of Stock [Line Items]          
Issuance of common stock, net of issuance costs (in shares)   10,250      
Alexander Settlement Agreement          
Class of Stock [Line Items]          
Cash fees paid     $ 125,000    
Issuance of common stock, net of issuance costs (in shares)     50,000    
Value of common stock issued     $ 111,000    
Shares disposal allowed per day   50,000 5,000