Annual report pursuant to Section 13 and 15(d)

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

v3.22.1
Stockholders' Equity - Summary of Stock Options Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Options Outstanding, Beginning Balance 113,900 44,400  
Options Outstanding, Cancelled/expired (28,400) (4,500)  
Options Outstanding, Granted 38,000 74,000  
Options Outstanding, Exercised 6,000    
Options Outstanding, Ending Balance 117,500 113,900 44,400
Options Outstanding, Exercisable 110,000    
Weighted Average Exercise Price      
Weighted Average Exercise Price, Beginning Balance $ 11.97 $ 13.31  
Weighted Average Exercise Price, Cancelled/expired 9.71 9.45  
Weighted Average Exercise Price, Granted 8.16 3.84  
Weighted Average Exercise Price, Exercised 4.32    
Weighted Average Exercise Price, Ending Balance 7.16 $ 11.97 $ 13.31
Weighted Average Exercise Price, Exercisable $ 7.10    
Aggregate Intrinsic Value, Options Outstanding $ 21 $ 78 $ 0
Aggregate Intrinsic Value, Options Exercisable $ 21    
Weighted Average Remaining Contractual Life 7 years 7 years 3 years
Weighted Average Remaining Contractual Life, Exercisable 6 years 10 months 24 days