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Note 15 - Equity Incentive Plans (Details Textual) - USD ($)
12 Months Ended
Dec. 27, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Jun. 24, 2021
Aug. 29, 2019
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   459,281 226,746      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period   92,827 23,800      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price   $ 3.12 $ 5.17 $ 7.45    
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Payments   $ 0        
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount   $ 862,605        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)   7 years 8 months 12 days        
Minimum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 0.69 1.6      
Maximum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 1.06 $ 2.47      
Merger Agreement [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 0.4          
Business Combination, Stock Options Assumed 108,875          
The 2019 Omnibus Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized           68,437
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   68,437        
The 2019 Omnibus Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)   10 years        
The 2021 Equity Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized         3,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   459,281 226,746      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period   92,827        
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant   1,811,063        
The 2021 Equity Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)   10 years        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   301,805 77,979