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Note 8 - Stock-based Compensation (Details Textual) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Apr. 02, 2023
Apr. 03, 2022
Share-Based Payment Arrangement, Amount Capitalized $ 18 $ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period (in shares) 0 0
Share-Based Payment Arrangement, Expense $ 715 $ 383
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) 0 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares) 0 0
Share-Based Payment Arrangement, Option [Member]    
Share-Based Payment Arrangement, Expense $ 0 $ 0
RSU and PRSU [Member]    
Share-Based Payment Arrangement, Expense 700 400
Restricted Stock Units (RSUs) [Member]    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 2,200 1,300
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 1 year 4 months 17 days  
Employee Stock Purchase Plan [Member]    
Employee Stock Ownership Plan (ESOP), Compensation Expense $ 30 $ 23