Note 13 - Derivatives and Hedging Activities - Derivatives on the Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Total amounts recognized in interest on investment securities	$ 3,466	$ 3,949	$ 7,269	$ 7,581
Total amounts recognized in interest and fees on loans receivable	22,814	23,733	45,045	46,500
Derivative, gain (loss)	(36)	(741)	(43)	(380)
Interest Rate Swap [Member]
Total amounts recognized in interest on investment securities	3,466	3,949	7,269	7,581
Total amounts recognized in interest and fees on loans receivable	22,814	23,733	45,045	46,500
Interest Rate Swap [Member] \| Asset-Backed Securities [Member]
Recognized on hedged items	(250)	1,062	(791)	95
Interest Rate Swap [Member] \| Asset-Backed Securities [Member] \| Designated as Hedging Instrument [Member]
Derivative, gain (loss)	230	(1,403)	761	(248)
Interest Rate Swap [Member] \| Closed Portfolio of Loans Receivable [Member]
Recognized on hedged items	(295)	1,728	(1,049)	1,017
Interest Rate Swap [Member] \| Closed Portfolio of Loans Receivable [Member] \| Designated as Hedging Instrument [Member]
Derivative, gain (loss)	$ 279	$ (2,128)	$ 1,036	$ (1,244)

Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying fair value hedge included in assessment of hedge effectiveness.

No definition available.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476153/220-40-55-21

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1

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Amount of interest income, amortization of premium and accretion of discount, on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading); classified as operating.

+ References

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