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Note 9 - Income Taxes - Components of Income Tax Expense (Benefit) from Continuing Operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Current income taxes:
Federal	$ 0	$ 0
State	0	0
Current tax (benefit)	0	0
Book in excess of tax depreciation	(156,342)	(386,673)
Work in progress	0	(442,964)
Net operating loss carryover	(2,387,047)	(402,448)
Valuation allowance	2,477,718	1,128,197
Discount amortization	129,266	84,190
Reserve for obsolete inventories	(102,432)	(37,841)
Deferred tax benefit	(38,837)	(57,539)
Total tax benefit	(38,837)	(206,207)
Danish Ministry of Taxation [Member]
Current income taxes:
Danish	$ 0	$ (148,668)

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Amount of current state and local tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current regional, territorial, and provincial tax expense (benefit) for non-US (United States of America) jurisdiction.

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