Note 9 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Effective Income Tax Rate Reconciliation, Percent	255.60%	6.70%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 3,300,000	$ 131,000
Income Taxes Receivable, Current	43,000	29,000
Income Taxes Paid, Net	20,000	$ 0
Domestic Tax Jurisdiction [Member]
Operating Loss Carryforwards	32,600,000
Operating Loss Carryforwards, Indefinite Life	11,300,000
Operating Loss Carryforwards, Subject To Expiration	21,300,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	23,400,000
Operating Loss Carryforwards, Indefinite Life	8,800,000
Operating Loss Carryforwards, Subject To Expiration	$ 14,600,000