Note 6 - Debt - Schedule of Debt (Details) - Credit Agreement [Member] - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Interest charges	$ 26	$ 309
Weighted average interest rate	7.80%	9.20%

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration