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Note 9 - Fair Value Measurements - Schedule of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Certificates of deposit at other financial institutions	$ 0	$ 1,727
FHLB stock, at cost	7,975	15,621
Loans Receivable, Fair Value Disclosure	12,571	12,728
Time deposits	1,299,774
Borrowings	129,305	307,806
Subordinated notes, excluding unamortized debt issuance costs	50,000	50,000
Interest Rate Swap [Member]
Derivative asset	1,773	7,306
Derivative liabilities	665	0
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Cash and cash equivalents	61,280	31,635
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member] | Certificates of Deposit [Member]
Certificates of deposit at other financial institutions	0	1,727
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	61,280	31,635
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member] | Certificates of Deposit [Member]
Certificates of deposit at other financial institutions	0	1,727
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]
Securities available-for-sale	311,695	281,175
Securities held-to-maturity, gross	31,606	8,500
Mortgage loans held for sale, at fair value	38,579	27,835
FHLB stock, at cost	7,975	15,621
Loans Receivable, Fair Value Disclosure	12,571	12,728
Time deposits	1,299,774	1,028,896
Borrowings	129,305	307,806
Subordinated notes, excluding unamortized debt issuance costs	50,000	50,000
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Interest Rate Swap [Member] | Cash Flow and Fair Value Hedging [Member]
Derivative asset	1,714	7,244
Derivative liabilities	665	0
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Dealer Offsets to Customer Swap [Member]
Derivative asset	59	62
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Customer Swap [Member]
Derivative liabilities	59	61
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative asset	30	180
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Securities available-for-sale	311,695	281,175
Securities held-to-maturity, gross	32,142	8,144
Mortgage loans held for sale, at fair value	38,579	27,835
FHLB stock, at cost	7,975	15,621
Loans Receivable, Fair Value Disclosure	12,571	12,728
Time deposits	1,300,722	1,024,663
Borrowings	128,100	307,408
Subordinated notes, excluding unamortized debt issuance costs	48,654	45,504
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] | Cash Flow and Fair Value Hedging [Member]
Derivative asset	1,714	7,244
Derivative liabilities	665	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Dealer Offsets to Customer Swap [Member]
Derivative asset	59	62
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Customer Swap [Member]
Derivative liabilities	59	61
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative asset	30	180
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]
Financing Receivable, before Allowance for Credit Loss	2,617,086	2,521,093
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	28	0
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Mortgage Servicing Rights [Member]
MSRs, held at lower of cost or fair value	8,506	9,204
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	0	31
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Interest Rate Lock Commitments [Member]
Derivative asset	275	103
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Financing Receivable, before Allowance for Credit Loss	2,525,412	2,385,213
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	28	0
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | Mortgage Servicing Rights [Member]
MSRs, held at lower of cost or fair value	21,691	21,043
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	0	31
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | Interest Rate Lock Commitments [Member]
Derivative asset	$ 275	$ 103

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- Definition

The amount of servicing asset held at lower of cost or fair value.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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