Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.23.1
Stockholders' Equity (Details)
 3 Months Ended 12 Months Ended
Mar. 29, 2023
USD ($)
Mar. 27, 2023
$ / shares
shares
Feb. 03, 2023
USD ($)
Jan. 31, 2023
$ / shares
shares
Jan. 24, 2023
Aug. 15, 2022
USD ($)
$ / shares
shares
Sep. 13, 2021
shares
Mar. 31, 2023
USD ($)
shares
Mar. 31, 2022
USD ($)
shares
Dec. 31, 2022
shares
Jan. 23, 2023
Jan. 31, 2021
$ / shares
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants               1,118,152        
Issuance of common stock upon warrant exchanged               855,637        
Proceeds from exercise of warrants | $               $ 32,000        
Shares unvested               2,778        
Change in fair value of warrant liability | $               $ 5,604,000        
Reverse stock split         0.01     0.01        
Gross proceeds | $           $ 3,000,000            
Maxim Group LLC [Member]                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants           1,944            
Issuance of common stock upon warrant exchanged                   1,944    
Exercise price per share | $ / shares           $ 99.70            
Common Shares [Member]                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants               2,715 0      
Issuance of common stock upon warrant exchanged               858,353        
Issuance of common stock in connection with convertible promissory note (In shares)               67,500        
Number of shares issued               1,420,513        
February 2023,Registered direct offering                        
Convertible Preferred Stock and Stockholders' Equity                        
Maxim an aggregate fee of the gross proceeds       8.00%                
Number of shares issued       201,544                
Net proceeds | $     $ 5,300,000                  
Minimum percentage of ownership held by investor       50.10%                
Period for filing any registration statement or amendment or supplement thereto under the Securities Act       90 days                
February 2023,Registered direct offering | Warrant                        
Convertible Preferred Stock and Stockholders' Equity                        
Exercise price per share | $ / shares                       $ 10.49
Common stock price | $ / shares                       $ 8.90
February 2023,Registered direct offering | Pre-Funded Warrants                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants       381,762                
Exercise price per share | $ / shares       $ 0.0001                
February 2023,Registered direct offering | Private Placement Warrants                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants       874,959                
Exercise price per share | $ / shares       $ 10.49                
March 2023,Registered direct offering                        
Convertible Preferred Stock and Stockholders' Equity                        
Exercise price per share | $ / shares   $ 1.91                    
Common stock price | $ / shares   $ 1.66                    
Number of shares issued and sold   837,207                    
Net proceeds | $ $ 1,600,000                      
March 2023,Registered direct offering | Private Placement Warrants                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants   1,674,414                    
Restricted stock                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of stock released               0        
Number of restricted shares granted               0        
Unamortized compensation costs | $               $ 1,720,000        
Weighted-average period               1 year 9 months 18 days        
Shares unvested               14,064   14,107    
LTSI                        
Convertible Preferred Stock and Stockholders' Equity                        
Maximum shares authorized to issue, percentage               15.00%        
Percentage of maximum shares issued in a year         15     8     8  
LTSI | Restricted stock                        
Convertible Preferred Stock and Stockholders' Equity                        
Aggregate intrinsic value | $                 $ 254,000      
Number of restricted shares granted               0 218,267      
September 2021 Inducement Grant                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of restricted shares granted                 0      
Unrecognized tax benefits, interest on income taxes expense | $               $ 377,000        
September 2021 Inducement Grant | Restricted stock                        
Convertible Preferred Stock and Stockholders' Equity                        
Aggregate intrinsic value | $                 $ 8,000      
Number of restricted shares granted                 65      
Vesting term               1 year 6 months        
Number of units issued             3,100          
2020 Stock Incentive Plan | Restricted stock                        
Convertible Preferred Stock and Stockholders' Equity                        
Aggregate intrinsic value | $                 $ 7,000      
Number of shares available for grant                 5,668      
Number of restricted shares granted               0        
Unamortized compensation costs | $               $ 200,000        
Weighted-average period               6 months        
2020 Stock Incentive Plan | Restricted stock units                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of stock released               0        
Unamortized compensation costs | $               $ 165,000        
Weighted-average period               3 years 2 months 12 days        
Shares unvested               2,147   2,161    
2022 | Restricted stock units                        
Convertible Preferred Stock and Stockholders' Equity                        
Shares unvested               3,700   3,700    
2022 Plan | Restricted stock                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of restricted shares granted               0 0      
Maximum | LTSI                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares available for grant               458,833        
Maxim Group LLC [Member]                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants           1,944            
Maxim Group LLC [Member] | Common Shares [Member]                        
Convertible Preferred Stock and Stockholders' Equity                        
Issuance of common stock upon warrant exchanged                   107,144    
Investor [Member]                        
Convertible Preferred Stock and Stockholders' Equity                        
Number of shares issuable upon exercise of warrants           20,970            
Exercise price per share | $ / shares           $ 99.70