Note 7 - Federal Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024
Effective tax rate	0.00%	0.00%		0.00%
Statutory federal income tax rate	21.00%	21.00%	21.00%	21.00%