Quarterly report pursuant to Section 13 or 15(d)

Convertible Redeemable Preferred Stock and Stockholders' Equity - Additional Information (Detail)

v3.23.3
Convertible Redeemable Preferred Stock and Stockholders' Equity - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 13, 2023
May 24, 2023
Jan. 09, 2023
Jun. 27, 2022
Jul. 23, 2020
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jun. 05, 2023
Mar. 01, 2022
Temporary Equity And Stockholders Equity [Line Items]                            
Preferred stock, shares authorized           1,000,000   1,000,000            
Common stock, par value           $ 0.001   $ 0.001   $ 0.001        
Common stock value           $ 2,000   $ 2,000   $ 0        
Issuance costs for common stock warrants               $ 447,000 $ 0          
Convertible preferred stock, shares issued           1,000,000   1,000,000            
Common stock authorized for issuance           908   908            
Compensation expense related to stock options           $ 300,000 $ 600,000 $ 1,100,000 1,700,000          
Total unrecognized compensation expense           700,000 1,800,000 700,000 $ 1,800,000          
Other liabilities           78,000   $ 78,000   362,000        
Unrecognized share based compensation expense to be recognized over weighted-average period               1 year            
Common stock offered               2,537,031 26,480          
Allocated Share-based Compensation Expense           276,000 591,000 $ 1,050,000 $ 1,691,000          
Additional paid-in-capital           312,523,000   312,523,000   301,790,000        
Accrued liabilities           $ 7,613,000   7,613,000   9,210,000        
June 2022 Warrants [Member]                            
Temporary Equity And Stockholders Equity [Line Items]                            
Weighted average exercise price of warrants       $ 0.1                    
Sale of common stock and pre-funded warrants, net of fees, shares       6,787                    
Proceeds from offering       $ 6,500,000                    
Combined purchase price of share and warrant       $ 462.5                    
June 2022 Pre-Funded Warrants [Member]                            
Temporary Equity And Stockholders Equity [Line Items]                            
Equity raise of gross proceeds       $ 5,600,000                    
Warrant issued       7,266                    
Combined purchase price of share and warrant       $ 462.4                    
July 2020 Warrants                            
Temporary Equity And Stockholders Equity [Line Items]                            
Issuance costs for warrants               15,300,000            
Conversion of preferred stock into common stock         2,500                  
July 2020 Warrants | Rights Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Allocated to the warrants based upon fair values         $ 15,300,000                  
Series F Convertible Preferred Stock and July 2020 Warrants | Rights Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Deemed dividend on convertible preferred stock                       $ 14,700,000    
Series F Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Preferred stock, shares authorized         18,000                  
Conversion price         $ 1,000                  
Series F Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Common stock value         $ 1,000,000                  
Issuance costs for warrants               $ 2,700,000            
Proceeds of common stock and warrants         18,000,000                  
Deemed dividend on convertible preferred stock         $ 2,700,000         $ 200,000 $ 500,000      
Conversion of preferred stock into common stock         18,000                  
Convertible preferred stock, shares outstanding           0   0   0        
Preferred stock par value         $ 0.001                  
Series F Convertible Preferred Stock | Rights Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Proceeds allocated to the warrants based upon fair values         $ 2,700,000                  
Series G Redeemable Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Temporary equity, par value                           $ 0.001
Series H Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Preferred stock, shares authorized           370,000   370,000            
PreferredStockRedemptionAmount   $ 7,800,000                        
Paid in-kind Dividends Percentage   20.00%                        
Issuance costs for warrants   $ 3,400,000                        
Conversion price   $ 13.98                        
Preferred Stock, Convertible, Conversion Price   $ 50                        
Proceeds from Warrant Exercise   $ 2,700,000                        
Temporary conversion of warrants into share           20,000   20,000            
Temporary conversion of preferred stock into common stock           190,000   190,000            
Proceeds of common stock and warrants   4,600,000                        
Allocated to the warrants based upon fair values   $ 1,200,000                        
Weighted average exercise price of warrants   $ 13                        
Risk-free interest rate   48.00%                        
Warrants And Rights Outstanding   $ 50,000                        
Preferred Stock Redemption Discount   $ 10,500,000                        
Temporary Equity Redemption Price Per Share           $ 0.001   $ 0.001            
Temporary equity, par value   $ 0.001       $ 0.001   $ 0.001            
Convertible preferred stock, shares issued           5,000   5,000            
Convertible preferred stock, shares outstanding           5,000   5,000            
Proceeds from offering   $ 4,600,000                        
Proceeds from offering from broker fees   $ 900,000                        
Combined purchase price of share and warrant   $ 0.5                        
Series H Convertible Preferred Stock | Rights Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Proceeds allocated to the warrants based upon fair values   $ 3,400,000                        
Series I Redeemable Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Preferred stock, shares authorized           125,000   125,000            
Temporary Equity Redemption Price Per Share           $ 0.001   $ 0.001            
Temporary equity, par value                         $ 0.001  
Series J Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Preferred stock, shares authorized           160,000   160,000            
PreferredStockRedemptionAmount $ 7,600,000                          
Paid in-kind Dividends Percentage 20.00%                          
Issuance costs for warrants $ 3,500,000                          
Conversion price $ 3.26                          
Preferred Stock, Convertible, Conversion Price $ 100                          
Proceeds from Warrant Exercise $ 2,700,000                          
Temporary conversion of warrants into share           2,980   2,980            
Temporary conversion of preferred stock into common stock           39,849   39,849            
Proceeds of common stock and warrants 4,500,000                          
Allocated to the warrants based upon fair values $ 1,000,000                          
Weighted average exercise price of warrants $ 30                          
Risk-free interest rate 40.00%                          
Warrants And Rights Outstanding $ 100,000                          
Preferred Stock Redemption Discount $ 10,300,000                          
Temporary Equity Redemption Price Per Share           $ 0.001   $ 0.001            
Temporary equity, par value $ 0.001                          
Proceeds from offering $ 4,500,000                          
Proceeds from offering from broker fees $ 1,000,000                          
Combined purchase price of share and warrant $ 0.5                          
Series J Convertible Preferred Stock | Rights Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Proceeds allocated to the warrants based upon fair values $ 3,500,000                          
Series J Warrants                            
Temporary Equity And Stockholders Equity [Line Items]                            
Issuance costs for warrants 1,000,000                          
Proceeds from Warrant Exercise 800,000                          
Temporary conversion of warrants into share           5,960   5,960            
Series H Warrants                            
Temporary Equity And Stockholders Equity [Line Items]                            
Issuance costs for warrants   1,200,000                        
Proceeds from Warrant Exercise   1,000,000                        
Temporary conversion of warrants into share           40,000   40,000            
Temporary conversion of preferred stock into common stock           7,000   7,000            
May 2023 Public Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Equity raise of gross proceeds   1,200,000                        
Issuance costs for common stock warrants   $ 200,000                        
January 2023 Warrant [Member]                            
Temporary Equity And Stockholders Equity [Line Items]                            
Common stock, par value     $ 0.001                      
Equity raise of gross proceeds     $ 8,500,000                      
Warrant issued     114,035                      
Weighted average exercise price of warrants     $ 1                      
Sale of common stock and pre-funded warrants, net of fees, shares     171,678                      
Proceeds from offering     $ 9,900,000                      
Combined purchase price of share and warrant     $ 35                      
January 2023 Prefunded Warrant [Member]                            
Temporary Equity And Stockholders Equity [Line Items]                            
Combined purchase price of share and warrant     $ 34                      
September 2023 Public Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Equity raise of gross proceeds 1,000,000                          
Issuance costs for common stock warrants $ 200,000                          
Private Placement | June 2022 Warrants [Member]                            
Temporary Equity And Stockholders Equity [Line Items]                            
Warrant issued       14,054                    
Public Offering | Series H Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Weighted average exercise price of warrants   $ 26                        
Sale of common stock and pre-funded warrants, net of fees, shares   175,000                        
Public Offering | Series J Convertible Preferred Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Weighted average exercise price of warrants $ 60                          
Sale of common stock and pre-funded warrants, net of fees, shares 75,000                          
Public Offering | May 2023 Public Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Sale of common stock and pre-funded warrants, net of fees, shares   175,000                        
Public Offering | September 2023 Public Offering                            
Temporary Equity And Stockholders Equity [Line Items]                            
Sale of common stock and pre-funded warrants, net of fees, shares 75,000                          
2002 Stock Incentive Plan                            
Temporary Equity And Stockholders Equity [Line Items]                            
Common stock authorized for issuance           1,244   1,244            
Options available for future grants           0   0            
2018 Long-Term Incentive Plan                            
Temporary Equity And Stockholders Equity [Line Items]                            
Increase in Number of Units Available for Issuance               42,212            
Options and restricted stock units outstanding           62,079   62,079            
2018 Long-Term Incentive Plan | Common Stock                            
Temporary Equity And Stockholders Equity [Line Items]                            
Common stock authorized for issuance           112,268   112,268            
Common stock authorized for share issued               5,797            
Restricted Stock Units (RSUs)                            
Temporary Equity And Stockholders Equity [Line Items]                            
Options and restricted stock units outstanding           159   159            
Phantom Share Units (PSUs)                            
Temporary Equity And Stockholders Equity [Line Items]                            
Other liabilities                   $ 300,000        
Allocated Share-based Compensation Expense           $ 100,000 100,000 $ 300,000            
Additional paid-in-capital           200,000 300,000 200,000 $ 300,000 $ 100,000        
Accrued liabilities           500,000   $ 500,000            
Shares issued in period               4,401            
Stock Appreciation Rights (SARs)                            
Temporary Equity And Stockholders Equity [Line Items]                            
Allocated Share-based Compensation Expense           0 $ 0 $ 0            
Additional paid-in-capital           $ 500,000   $ 500,000            
Shares issued in period                     386      
June 2020 Warrants | Series F Convertible Preferred Stock and July 2020 Warrants                            
Temporary Equity And Stockholders Equity [Line Items]                            
Warrant issued         45,000,000