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Note 13 - Stock-Based Compensation - Schedule of Weighted Average Assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2023
Jan. 01, 2023
Jan. 02, 2022
Expected life (months) (Month) 6 months 6 months 6 months
Risk-free interest rate 5.30% 3.04% 0.05%
Volatility 50.00% 57.00% 74.00%
Dividend yield 0.00% 0.00% 0.00%
Employee Stock Purchase Plan [Member]      
Weighted average fair value of ESPP options granted (in dollars per share) $ 2.14 $ 2.04 $ 2.18