Quarterly report pursuant to Section 13 or 15(d)

Capital Raises (Details)

v3.23.1
Capital Raises (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jul. 22, 2022
Mar. 22, 2022
Mar. 22, 2022
Sep. 13, 2021
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Mar. 15, 2022
Capital Raises (Textual)                
Preferred stock, shares authorized (in shares)         5,000,000 5,000,000    
Preferred stock, par value (in usd per share)         $ 0.001 $ 0.001    
Warrants and rights outstanding   $ 5,600 $ 5,600          
Net proceeds from issuance of preferred stock and warrants         $ 0   $ 46,906  
Warrants forfeited (in shares)     394,000          
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          
Shares issued for cash / offering         $ 14,966   1,500  
Equity Distribution Agreement                
Capital Raises (Textual)                
Number of common shares sold under offering (in shares)         9,655,207      
Sale of stock, maximum potential offering $ 25,000              
Sale of stock, consideration received on transaction         $ 15,400      
Equity Distribution Agreement | Minimum                
Capital Raises (Textual)                
Share price (in usd per share)         $ 1.15      
Equity Distribution Agreement | Maximum                
Capital Raises (Textual)                
Share price (in usd per share)         $ 1.86      
Additional Paid-in Capital                
Capital Raises (Textual)                
Shares issued for cash / offering             1,500  
Additional Paid-in Capital | Public Offering                
Capital Raises (Textual)                
Shares issued for cash / offering         $ 14,956      
Series 8 Convertible Preferred Stock                
Capital Raises (Textual)                
Preferred stock, shares authorized (in shares)   53,197.7234 53,197.7234          
Preferred stock, stated value per share (in usd per share)   $ 1,000 $ 1,000          
Preferred stock, convertible, conversion price (in usd per share)   $ 35.38 $ 35.38          
Net proceeds from issuance of preferred stock and warrants   $ 46,900            
Preferred redeemed for cash (in shares)           53,197.72    
Series 8 Preferred redeemed for cash           $ 53,200    
Warrants forfeited (in shares)           751,841    
Deemed dividend for the modification related to Series 8 Preferred Stock         0   (2,627)  
Deemed contribution for the modification related to Warrants issued in connection with Series 8 Preferred Stock         $ 0   1,469  
Shares issued for cash / offering             5,329  
Series 8 Convertible Preferred Stock | Registered Direct Offering                
Capital Raises (Textual)                
Preferred stock, shares authorized (in shares)   53,197.7234 53,197.7234          
Number of common shares sold under offering (in shares)   1,503,726            
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, par value (in usd per share)   $ 0.001 $ 0.001          
Series 8 Convertible Preferred Stock | Warrants                
Capital Raises (Textual)                
Percent of warrants forfeited upon redemption   50.00% 50.00%          
Series 8 Convertible Preferred Stock | Additional Paid-in Capital                
Capital Raises (Textual)                
Shares issued for cash / offering             $ 5,329  
Series 7 Convertible Preferred Stock                
Capital Raises (Textual)                
Net proceeds from issuance of preferred stock and warrants       $ 50,600        
Preferred redeemed for cash (in shares)     49,250          
Series 8 Preferred redeemed for cash     $ 49,300          
Series 7 Convertible Preferred Stock | Registered Direct Offering                
Capital Raises (Textual)                
Subscription price (in usd per share)       $ 920        
Original issuance discount percentage       8.00%        
Aggregate subscription value       $ 54,100        
Series 7 Convertible Preferred Stock | Warrants                
Capital Raises (Textual)                
Percent of warrants forfeited upon redemption               75.00%
Series 7 Convertible Preferred Stock | Warrants | Registered Direct Offering                
Capital Raises (Textual)                
Number of common shares sold under offering (in shares)       626,667