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Note 10 - Stock-based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2024
Apr. 02, 2023
Dec. 31, 2023
Share-Based Payment Arrangement, Amount Capitalized $ 146 $ 18  
Share-Based Payment Arrangement, Expense 1,563 715  
Share-Based Payment Arrangement, Option [Member]      
Share-Based Payment Arrangement, Expense 0 0  
Proceeds from Stock Options Exercised     $ 0
RSU and PRSU [Member]      
Share-Based Payment Arrangement, Expense 1,500 700  
Restricted Stock Units (RSUs) [Member]      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 3,100 2,200  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) 9 months 21 days    
Employee Stock Purchase Plan [Member]      
Employee Stock Ownership Plan (ESOP), Compensation Expense $ 28 $ 30