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Note 9 - Fair Value Measurements (Tables)
12 Months Ended
Jan. 02, 2022
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

Fair Value Measurements at Reporting Date Using

 
      

Quoted Prices in Active Markets for Identical Assets

  Significant Other Observable Inputs  Significant Unobservable Inputs 

Assets:

 

Total

  

(Level I)

  

(Level 2)

  

(Level 3)

 

Investment in privately-held non-affiliate

 $300,000  $  $  $300,000 

Total assets

 $300,000  $  $  $