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CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE AND REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS’ DEFICIT (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Series B Convertible and Redeemable Preferred Stock
Series C Convertible and Redeemable Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]              
Exchange of series B-2 convertible preferred stock to series C convertible preferred stock $ 0            
Convertible preferred stock deemed dividends 0            
Beginning balance (in shares) at Dec. 31, 2020   5,423,387          
Beginning balance at Dec. 31, 2020 1,347 $ 1 $ 656,834 $ 0 $ (655,488)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of common stock (in shares)   1,142,857          
Issuance of common stock 27,709 $ 0 27,709        
Restricted stock awards issued (in shares)   118,166          
Change in fair value of financial instruments attributed to credit risk change 0            
Shares withheld to cover taxes related to vesting of restricted stock awards (in shares)   (176)          
Shares withheld to cover taxes related to vesting of restricted stock awards (7)   (7)        
Stock-based compensation 3,464   3,464        
Net loss (46,151)       (46,151)    
Ending balance (in shares) at Mar. 31, 2021   6,684,234          
Ending balance at Mar. 31, 2021 (13,638) $ 1 688,000 0 (701,639)    
Beginning balance (in shares) at Dec. 31, 2021           5,000 0
Beginning balance at Dec. 31, 2021           $ 4,740 $ 0
Increase (Decrease) in Temporary Equity [Roll Forward]              
Conversion of series B-2 convertible preferred stock (in shares)           (650)  
Conversion of series B-2 convertible preferred stock           $ (619)  
Exchange of series B-2 convertible preferred stock (in shares)           1,700 1,700
Exchange of series B-2 convertible preferred stock to series C convertible preferred stock 1,616         $ (1,616) $ 1,616
Convertible preferred stock deemed dividends 81   81     $ 16 $ 1
Ending balance (in shares) at Mar. 31, 2022           2,650 1,700
Ending balance at Mar. 31, 2022           $ 2,521 $ 1,617
Beginning balance (in shares) at Dec. 31, 2021   10,833,308          
Beginning balance at Dec. 31, 2021 (104,315) $ 1 751,275 5,089 (860,680)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Issuance of common stock (in shares)   1,209,098          
Issuance of common stock 5,400 $ 0 5,400        
Conversion of series B-2 convertible preferred stock (in shares)   122,310          
Conversion of series B-2 convertible preferred stock 708   708        
Restricted stock awards issued (in shares)   157,333          
Change in fair value of financial instruments attributed to credit risk change 181     181      
Modification of the Baker Warrants 828   828        
Stock-based compensation 1,067   1,067        
Net loss (31,888)       (31,888)    
Ending balance (in shares) at Mar. 31, 2022   12,322,049          
Ending balance at Mar. 31, 2022 $ (128,100) $ 1 $ 759,197 $ 5,270 $ (892,568)