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Note 9 - Accrued Expenses (Tables)
6 Months Ended
Jun. 28, 2025
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   

June 28,

   

December 28,

 
   

2025

   

2024

 
                 

Accrued legal and accounting

  $ 77,177     $ 138,600  

Accrued payroll and related expenses

    354,631       254,737  

Accrued product returns

    500,283       429,617  

Accrued other

    104,372       90,325  
                 
    $ 1,036,463     $ 913,279