Note 9 - Income Taxes - Effective Income Tax Rate Reconciliation for Computed Income Tax Expense (Benefit) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021
Tax at statutory rate	$ 578,214	$ 106,869
State tax, net of federal benefit	177,036	36,301
Valuation allowance		(2,849,693)
Other	1,018	(455)
Total	$ 756,268	$ (2,706,978)