Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Additional Information (Details)

v3.23.1
Shareholders' Equity - Additional Information (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 02, 2021
USD ($)
Jan. 29, 2021
USD ($)
$ / shares
shares
Jul. 02, 2022
USD ($)
shares
Jul. 03, 2021
USD ($)
Jul. 02, 2022
USD ($)
shares
Jul. 03, 2021
USD ($)
shares
Jan. 01, 2022
$ / shares
shares
Jan. 02, 2021
shares
Shareholders Equity [Line Items]                
Common stock, shares authorized (in shares)             10,000,000  
Common stock, issued shares (in shares)     3,150,230   3,150,230   3,150,230  
Common stock, outstanding shares (in shares)     2,827,410   2,827,410   2,827,410  
Common stock par value | $ / shares             $ 0.001  
Gross proceeds reimbursement for accountable legal expenses | $   $ 420,000            
Options outstanding     117,500   117,500   117,500 113,900
Options granted     0   0   38,000  
Number of shares converted     205,287   205,287      
Number of shares converted to Common Stock     322,820   322,820      
Preferred Stock outstanding             238,729  
Stock Options                
Shareholders Equity [Line Items]                
Share-based compensation expense | $     $ 1,000,000 $ 71,000,000 $ 4,000,000 $ 180,000,000    
2016 Plan                
Shareholders Equity [Line Items]                
Options expiration date         Oct. 28, 2026      
Options authorized for issuance     800,000   800,000      
Options outstanding     90,000   90,000   90,000  
2011 Plan                
Shareholders Equity [Line Items]                
Options outstanding     27,500   27,500   27,500  
Additional awards to be granted after adoption of 2016 plan         0      
Series A1 Convertible Preferred Stock [Member]                
Shareholders Equity [Line Items]                
Conversion of Stock, Shares Issued         16,141      
Common Stock                
Shareholders Equity [Line Items]                
Preferred Stock, Convertible, Conversion Ratio     0.05   0.05      
Common Stock | Equity Offering                
Shareholders Equity [Line Items]                
Common stock, shares authorized (in shares)   571,428            
Common stock par value | $ / shares   $ 0.001            
Common stock purchase price per share | $ / shares   $ 10.50            
Common stock gross proceeds before deducting placement agent fees and offering expenses | $ $ 6,000,000.0              
Common Stock | Equity Offering | Placement Agency Agreement                
Shareholders Equity [Line Items]                
Percentage of cash fee gross proceeds   7.00%            
Common Stock | Equity Offering | Maximum | Placement Agency Agreement                
Shareholders Equity [Line Items]                
Gross proceeds reimbursement for accountable legal expenses | $   $ 35,000            
Series A Preferred                
Shareholders Equity [Line Items]                
Number of shares converted     4,105,732   4,105,732      
Conversion of Stock, Shares Issued         16,141      
Preferred Stock outstanding     222,588   222,588   238,729  
Contractor                
Shareholders Equity [Line Items]                
Stock issued for services, shares         0 0    
Articles of Incorporation                
Shareholders Equity [Line Items]                
Common stock, shares authorized (in shares)     200,000,000   200,000,000