Note 4 - Income Taxes - Income Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Federal	$ 522,900	$ 931,000
State	674,000	660,000
Current Income Tax Expense (Benefit)	1,196,900	1,591,000
Deferred, Federal	51,985	1,961,700
Deferred, State	(325,000)	864,300
Total income tax expense	$ 923,885	$ 4,417,000