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Note 2 - Business Acquisition (Details Textual) - ATD [Member] - USD ($)
12 Months Ended
Jan. 02, 2025
Dec. 31, 2024
Jan. 03, 2024
Jan. 02, 2024
Dec. 31, 2024
Business Combination, Consideration Transferred       $ 20,576,000 $ 20,576,000
Payments to Acquire Businesses, Gross       $ 10,048,000 $ 10,048,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) 664,329 664,329 2,832,135 3,496,464 2,832,135
Business Acquisition, Share Price (in dollars per share)       $ 2.86  
Business Combination, Acquisition-Related Cost, Expense         $ 548,000