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Note 9 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 25, 2021
Current:    
Federal, current $ 1,270  
State, current 456 $ 11,967
Current income tax provision (benefit): 1,726 11,967
Deferred:    
Federal, deferred 577,866 (2,156,278)
State, deferred 176,676 (562,667)
Deferred income tax provision (benefit), net 754,542 (2,718,945)
Total $ 756,268 $ (2,706,978)