Quarterly report pursuant to Section 13 or 15(d)

Capital Raises (Details)

v3.22.2.2
Capital Raises (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 22, 2022
Mar. 22, 2022
Sep. 13, 2021
Feb. 16, 2021
Feb. 12, 2021
Feb. 11, 2021
Jan. 24, 2021
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Capital Raises (Textual)                          
Proceeds from warrant exercises       $ 18,500 $ 27,800   $ 27,800            
Number of common shares sold under offering (in shares)           3,000,000              
Preferred stock, shares authorized (in shares)               5,000,000     5,000,000   5,000,000
Preferred stock, shares issued (in shares)               49,250     49,250    
Preferred stock, shares outstanding (in shares)               49,250     49,250    
Net proceeds from issuance of preferred stock and warrants     $ 50,600               $ 46,906 $ 0  
Preferred stock, par value (in usd per share)               $ 0.001     $ 0.001   $ 0.001
Warrants and rights outstanding $ 5,600 $ 5,600                      
Warrants forfeited (in shares)   29,550,000                      
Shared holders participants, percent   71.00%                      
Deemed dividend for the modification related to Series 8 Preferred Stock   $ (2,600)                      
Deemed contribution for the modification related to Warrants issued in connection with Series 8 Preferred Stock   $ 1,500                      
Series 7 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Mezzanine equity, convertible preferred shares, par value per share (in usd per share)     $ 0.001                    
Mezzanine equity, convertible preferred shares, stated value per share (in usd per share)     1,000                    
Mezzanine equity, convertible preferred shares, conversion price (in usd per share)     $ 1.25                    
Net proceeds from issuance of preferred stock and warrants     $ 50,600                    
Series 7 Preferred redeemed for cash (in shares)   49,250                      
Series 7 Preferred redeemed for cash   $ 49,300             $ 49,300        
Common Stock                          
Capital Raises (Textual)                          
Mezzanine equity, convertible preferred shares, conversion price (in usd per share)     $ 1.25                    
Series 8 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Number of common shares sold under offering (in shares) 112,778,720                        
Subscription price (in usd per share) $ 940 $ 940                      
Original issuance discount percentage 6.00% 6.00%                      
Aggregate subscription value $ 50,000 $ 50,000                      
Preferred stock, shares authorized (in shares) 53,197.7234 53,197.7234                      
Net proceeds from issuance of preferred stock and warrants $ 46,900                        
Preferred stock, par value (in usd per share) $ 0.001 $ 0.001                      
Preferred stock, stated value per share (in usd per share) 1,000 1,000                      
Preferred stock, convertible, conversion price (in usd per share) $ 0.4717 $ 0.4717                      
Deemed dividend for the modification related to Series 8 Preferred Stock               $ 0   $ 0 $ (2,627) 0  
Deemed contribution for the modification related to Warrants issued in connection with Series 8 Preferred Stock               $ 0   $ 0 $ 1,469 $ 0  
Purchase Warrants                          
Capital Raises (Textual)                          
Exercisable warrants per common share (in shares)       1 1   1            
Registered Direct Offering                          
Capital Raises (Textual)                          
Common stock issued in direct offering (in shares)       3,000,000 7,000,000   5,800,000            
Subscription price (in usd per share)     $ 920                    
Original issuance discount percentage     8.00%                    
Aggregate subscription value     $ 54,100                    
Registered Direct Offering | Series 7 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Number of common shares sold under offering (in shares)     58,750                    
Subscription price (in usd per share)     $ 920                    
Original issuance discount percentage     8.00%                    
Aggregate subscription value     $ 54,100                    
Registered Direct Offering | Common Stock                          
Capital Raises (Textual)                          
Number of common shares sold under offering (in shares)     47,000,000                    
Warrants                          
Capital Raises (Textual)                          
Warrants to purchase shares of common stock after adjustment (in shares)       9,950,250 15,000,000   19,354,838            
Exercise price of warrants (in usd per share)                         $ 0.001
Percent of warrants forfeited upon redemption     75.00%                    
Warrants | Series 7 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Percent of warrants forfeited upon redemption 75.00% 75.00%                      
Warrants | Series 8 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Percent of warrants forfeited upon redemption 50.00% 50.00%                      
Warrants | Purchase Warrants                          
Capital Raises (Textual)                          
Exercise price of warrants (in usd per share)       $ 2.01 $ 2.00   $ 1.55            
Offering price (in usd per share)       $ 2.01 $ 2.00   $ 1.55            
Warrants | Registered Direct Offering                          
Capital Raises (Textual)                          
Common stock issued in direct offering (in shares)       3,000,000 7,000,000   5,800,000            
Number of common shares sold under offering (in shares)     47,000,000                    
Warrants | Registered Direct Offering | Series 7 Convertible Preferred Stock                          
Capital Raises (Textual)                          
Number of common shares sold under offering (in shares)     47,000,000                    
January 2021 Pre-Funded Warrants                          
Capital Raises (Textual)                          
Warrants to purchase shares of common stock after adjustment (in shares)             13,554,838            
Exercise price of warrants (in usd per share)             $ 0.001            
Offering price (in usd per share)             $ 1.549            
Exercisable warrants per common share (in shares)             1            
Warrants exercisable period             5 years            
February 2021 Pre-Funded Warrants                          
Capital Raises (Textual)                          
Warrants to purchase shares of common stock after adjustment (in shares)         8,000,000                
Exercise price of warrants (in usd per share)         $ 0.001                
Offering price (in usd per share)         $ 1.999                
Exercisable warrants per common share (in shares)         1                
Warrants exercisable period         5 years                
Second February 2021 Pre-Funded Warrants                          
Capital Raises (Textual)                          
Warrants to purchase shares of common stock after adjustment (in shares)       6,950,250                  
Exercise price of warrants (in usd per share)       $ 0.001                  
Offering price (in usd per share)       $ 2.009                  
Exercisable warrants per common share (in shares)       1                  
Warrants exercisable period       5 years