Quarterly report pursuant to Section 13 or 15(d)

Unaudited Condensed Consolidated Statements of Stockholders' Equity (Deficit)

v3.22.1
Unaudited Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Series F Convertible Preferred Stock
Common Stock
Common Stock
Series F Convertible Preferred Stock
Series F Convertible Preferred Stock
Series F Convertible Preferred Stock
Additional Paid-In Capital
Additional Paid-In Capital
Series F Convertible Preferred Stock
Accumulated Deficit
Balance (in shares) at Dec. 31, 2020     8,651,400   21,754      
Balance at Dec. 31, 2020 $ (28,102)   $ 9   $ 0 $ 232,530   $ (260,641)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Shares and warrants issued pursuant to private placement (in shares)     546,733          
Shares and warrants issued pursuant to private placement 4,072   $ 1     4,071    
Share-based compensation (in shares)     17,537          
Share-based compensation 2,544         2,544    
Warrant exercises (in shares)     297,383          
Warrant exercises 1,310         1,310    
Stock issued to third parties for services (in shares)     5,000          
Shares issued to third parties for services 46         46    
Warrant modifications 0         402   (402)
Conversion of Series F shares to common stock (in shares)       1,482,672 (4,448)      
Conversion of Series F shares to common stock   $ 0   $ 1     $ (1)  
Net loss available to common stockholders (12,850)             (12,850)
Balance (in shares) at Mar. 31, 2021     11,000,725   17,306      
Balance at Mar. 31, 2021 (32,980)   $ 11   $ 0 240,902   (273,893)
Balance (in shares) at Dec. 31, 2021     29,146,367          
Balance at Dec. 31, 2021 57,875   $ 29     317,102   (259,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Share-based compensation (in shares)     218,345          
Share-based compensation 1,091         1,091    
Net loss available to common stockholders (4,040)             (4,040)
Balance (in shares) at Mar. 31, 2022     29,364,712          
Balance at Mar. 31, 2022 $ 54,926   $ 29     $ 318,193   $ (263,296)