Note 5 - Federal Income Taxes - Reconciliation of Income Tax (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income (loss) before total federal income tax	$ 168,050	$ (456,136)
Tax Rate	21.00%	21.00%
Expected income tax expense (benefit)	$ 35,291	$ (95,789)
Effect of tax-exempt income	(11,925)	(9,808)
Disallowed deductions	693
Other GAAP to tax differencees	(24,059)	105,597
Change in valuation allowance	(431,158)
Total income tax benefit	$ (431,158)