Note 7 - Deposits (Details Textual) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Interest-Bearing Domestic Deposit, Brokered	$ 165.0	$ 150.2
Interest-Bearing Domestic Deposit, Retail	$ 24.1	$ 47.6

Amount of interest-bearing domestic third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant