Annual report pursuant to Section 13 and 15(d)

Convertible Redeemable Preferred Stock and Stockholders' Equity (Details)

v3.24.1
Convertible Redeemable Preferred Stock and Stockholders' Equity (Details)
 1 Months Ended 12 Months Ended
Jan. 24, 2023
Sep. 13, 2021
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Jul. 26, 2023
Aug. 15, 2022
$ / shares
shares
Dec. 31, 2021
shares
Mar. 30, 2020
shares
Jan. 30, 2018
Convertible Preferred Stock and Stockholders' Equity                    
Shares issued     0 38,335 0          
Number of shares authorized       375,000            
Number of shares outstanding     0 38,335 0          
Proceeds from issuance of common stock in connection with warrant exercise | $       $ 12,533,000 $ 6,418,000          
Stock-based compensation | $       $ 255,000            
Shares unvested       2,514            
Proceeds from issuance of Series B preferred stock, net of issuance costs | $       $ 3,955,000            
Change in fair value of warrant liability | $       $ 4,510,000 $ 2,852,000          
Reverse stock split ratio 0.01     0.01            
Lippert Heishorn Associates Inc                    
Convertible Preferred Stock and Stockholders' Equity                    
Proceeds from issuance of common stock in connection with warrant exercise | $     $ 488,000              
Exercise price | $ / shares     $ 11.00   $ 11.00          
Warrants exercise price (in $ per share) | $ / shares     $ 14.00   $ 14.00          
Expected term         5 years          
Aggregate share issued     53,572              
Design LLC                    
Convertible Preferred Stock and Stockholders' Equity                    
Proceeds from issuance of common stock in connection with warrant exercise | $         $ 488,000          
Exercise price | $ / shares     $ 11.00   $ 11.00          
Warrants exercise price (in $ per share) | $ / shares     $ 14.00   $ 14.00          
Risk free interest rate     3.68%              
Expected term         5 years          
Aggregate share issued         53,572          
Maxim Group LLC [Member]                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate shares issued upon exercise of warrants (in shares)             1,944   20,970  
Warrants exercise price (in $ per share) | $ / shares             $ 99.70      
Warrant                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate shares issued upon exercise of warrants (in shares)     100 100 100          
Issuance of common stock upon warrant exchanged       28,133,588 107,144          
Common stock price (in $ per share) | $ / shares     $ 11.00   $ 11.00          
Issuance of common stock in connection with convertible securities (In shares)         1,944          
Pre-Funded Warrants                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate shares issued upon exercise of warrants (in shares)       207            
Common Shares [Member]                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate shares issued upon exercise of warrants (in shares)     0   0          
Issuance of common stock upon warrant exchanged       2,854,485            
Aggregate share issued       2,176,435 540,000          
Percentage of exercise of warrants issued           100.00%        
Common Shares [Member] | Pre-Funded Warrants                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate shares issued upon exercise of warrants (in shares)       2,715            
Proceeds from issuance of common stock in connection with warrant exercise | $       $ 32,000            
Restricted stock                    
Convertible Preferred Stock and Stockholders' Equity                    
Unamortized compensation costs | $       $ 1,437,000            
Number of stock released       157,581 5,404          
Number of restricted shares granted       964,041 12,784          
Vesting term       1 year 10 months 24 days            
Shares unvested     14,107 807,282 14,107     7,328    
LTSI                    
Convertible Preferred Stock and Stockholders' Equity                    
Maximum shares authorized to issue, percentage                   15.00%
Percentage of maximum shares issued in a year                   0.08
Number of shares available for grant       2,668,548            
LTSI | Restricted stock                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate intrinsic value | $       $ 25,000 $ 324,000          
Number of restricted shares granted       157,581 5,404          
September 2021 Inducement Grant                    
Convertible Preferred Stock and Stockholders' Equity                    
Vesting term       8 months 12 days            
Unrecognized tax benefits, interest on income taxes expense | $       $ 185,000            
September 2021 Inducement Grant | Restricted stock                    
Convertible Preferred Stock and Stockholders' Equity                    
Aggregate intrinsic value | $       $ 1,000            
Number of restricted shares granted       264            
Number of units issued   3,100                
2020 Stock Incentive Plan | Restricted stock                    
Convertible Preferred Stock and Stockholders' Equity                    
Number of stock released       2,000 2,104          
Shares unvested     2,161 67 2,161     4,403    
2020 Stock Incentive Plan | Restricted stock units                    
Convertible Preferred Stock and Stockholders' Equity                    
Unamortized compensation costs | $       $ 6,000            
Number of stock released       2,000 2,104          
Aggregate intrinsic value | $       $ 1,000 $ 68,000          
Vesting term       2 months 12 days            
2022 | Restricted stock units                    
Convertible Preferred Stock and Stockholders' Equity                    
Unamortized compensation costs | $       $ 118,000            
Number of stock released       919 0          
Aggregate intrinsic value | $       $ 1,000            
Number of restricted shares granted         3,700          
Weighted-average period       2 years 6 months            
Shares unvested     3,700 2,531 3,700          
Maxim Group LLC [Member] | Warrant                    
Convertible Preferred Stock and Stockholders' Equity                    
Proceeds from issuance of common stock in connection with warrant exercise | $         $ 91,000          
Warrants exercise price (in $ per share) | $ / shares     $ 99.70   $ 99.70          
Common stock price (in $ per share) | $ / shares     $ 77.00   $ 77.00          
Aggregate share issued         1,944          
Lippert Heishorn Associates Inc                    
Convertible Preferred Stock and Stockholders' Equity                    
Dividend rate (in %)       0.00%            
Volatility rate     89.00%              
Risk free interest rate         3.68%          
Design LLC                    
Convertible Preferred Stock and Stockholders' Equity                    
Dividend rate (in %)         0.00%          
Volatility rate         89.00%