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Stockholders' Equity - Preferred Stock (Details)
 6 Months Ended
Mar. 03, 2023
USD ($)
Votes
$ / shares
shares
Jun. 30, 2023
$ / shares
shares
Apr. 20, 2023
$ / shares
Dec. 31, 2022
$ / shares
shares
Class of Stock [Line Items]        
Preferred stock, shares authorized (in shares)   5,000,000   5,000,000
Preferred stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001
Preferred stock, shares outstanding (in shares)   1,952   1,952
Common stock, par value (in dollars per share) | $ / shares   $ 0.001 $ 0.001 $ 0.001
Series B Convertible Preferred Stock [Member] | 2018 Rights Offering [Member]        
Class of Stock [Line Items]        
Preferred stock, shares outstanding (in shares)   1,014    
Number of preferred stock, shares converted   398    
Series C Convertible Preferred Stock [Member] | 2018 Rights Offering [Member]        
Class of Stock [Line Items]        
Preferred stock, shares outstanding (in shares)   938    
Number of preferred stock, shares converted   27,792    
Series F Convertible Preferred Stock [Member]        
Class of Stock [Line Items]        
Preferred stock, shares authorized (in shares) 1      
Number Of Votes Per Share | Votes 50,000,000      
Common stock, par value (in dollars per share) | $ / shares $ 0.001      
Preferred stock, voting rights no      
Rights related to distribution of assets no      
Consideration paid to preferred stock holders | $ $ 1,000      
Series F Convertible Preferred Stock [Member] | Subscription Agreement [Member]        
Class of Stock [Line Items]        
Common stock, par value (in dollars per share) | $ / shares $ 0.001      
Consideration to purchaser in cash | $ $ 1,000      
Issue and sale of share 1      
Sale closed date Mar. 03, 2023