Note 4 - Financing Arrangements - Schedule of Repurchase Agreement (Details) (Parentheticals) - Repurchase Agreement [Member]	9 Months Ended
Sep. 30, 2026
Minimum [Member]
Basis spread	1.65%
Maximum [Member]
Basis spread	2.15%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration