Note 15 - Income Taxes - Schedule of Cash Paid for Income Taxes Paid, Net of Refunds (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Federal Income Tax Paid	$ 0	$ 0
State and Local Income Tax Paid	10,691	7,293
International Income Tax Paid	0	0
Total income taxes paid	10,691	7,293
California Franchise Tax Board [Member]
State and Local Income Tax Paid	800	800
Michigan Tax [Member]
State and Local Income Tax Paid	791	0
Minnesota Tax [Member]
State and Local Income Tax Paid	0	1,000
New York State Division of Taxation and Finance [Member]
State and Local Income Tax Paid	4,000	2,403
Pennsylvania Tax [Member]
State and Local Income Tax Paid	1,300	0
Texas Tax [Member]
State and Local Income Tax Paid	3,687	3,010
Other State and Local Tax [Member]
State and Local Income Tax Paid	113	80
Other Foreign Countries [Member]
International Income Tax Paid	$ 0	$ 0