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Note 5 - Fair Value of Marketable Securities (Tables)
12 Months Ended
Dec. 28, 2024
Notes Tables  
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
   

December 28,

2024

   

December 30,

2023

 

Cost basis

  $ 1,015,501        

Unrealized gain

  $ 15,500        

Total fair value

  $ 1,031,001