Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Stock Options Activity (Details)

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Stockholders' Equity - Summary of Stock Options Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Options Outstanding      
Options outstanding, beginning balance (in shares) 110,000 117,500  
Granted (in shares) 10,000    
Cancelled/expired (in shares) (6,000) (7,500)  
Options outstanding, ending balance (in shares) 114,000 110,000 117,500
Options outstanding, exercisable (in shares) 114,000    
Weighted Average Exercise Price      
Weighted average exercise price, beginning balance (in usd per share) $ 6.27 $ 7.16  
Granted (in usd per share) 1.53    
Cancelled/expired (in usd per share) 0    
Weighted average exercise price, ending balance (in usd per share) 5.68 $ 6.27 $ 7.16
Exercisable (in usd per share) $ 5.68    
Aggregate Intrinsic Value      
Aggregate intrinsic value, options outstanding $ 0 $ 0 $ 21
Aggregate intrinsic value, options exercisable $ 0    
Weighted Average Remaining Contractual Life 6 years 1 month 6 days 6 years 6 months 7 years
Weighted average remaining contractual life, exercisable 6 years 1 month 6 days