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Note 9 - Fair Value Measurements - Schedule of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Certificates of deposit at other financial institutions	$ 248	$ 1,727
Loans Receivable, Fair Value Disclosure	13,240	12,728
Time deposits	1,177,646
Borrowings	234,305	307,806
Subordinated notes, excluding unamortized debt issuance costs	50,000	50,000
Interest Rate Swap [Member]
Derivative asset	2,656	7,306
Derivative liabilities	632	0
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Cash and cash equivalents	33,195	31,635
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member] | Certificates of Deposit [Member]
Certificates of deposit at other financial institutions	248	1,727
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	33,195	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	248	1,727
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]
Securities available-for-sale	302,692	281,175
Securities held-to-maturity, gross	31,782	8,500
Mortgage loans held for sale, at fair value	53,630	27,835
Loans Receivable, Fair Value Disclosure	13,240	12,728
Time deposits	1,177,646	1,028,896
Borrowings	234,305	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	2,614	7,244
Derivative liabilities	633	0
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Dealer Offsets to Customer Swap [Member]
Derivative asset	42	62
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative liabilities	162	0
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Customer Swap [Member]
Derivative liabilities	41	61
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative asset	0	180
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Securities available-for-sale	302,692	281,175
Securities held-to-maturity, gross	31,776	8,144
Mortgage loans held for sale, at fair value	53,630	27,835
Loans Receivable, Fair Value Disclosure	13,240	12,728
Time deposits	1,175,427	1,024,663
Borrowings	232,645	307,408
Subordinated notes, excluding unamortized debt issuance costs	48,745	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	2,614	7,244
Derivative liabilities	633	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Dealer Offsets to Customer Swap [Member]
Derivative asset	42	62
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative liabilities	162	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Customer Swap [Member]
Derivative liabilities	41	61
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative asset	0	180
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]
Financing Receivable, before Allowance for Credit Loss	2,601,221	2,521,093
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	394	0
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | Mortgage Servicing Rights [Member]
MSRs, held at lower of cost or fair value	8,652	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	409	103
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Financing Receivable, before Allowance for Credit Loss	2,480,330	2,385,213
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative liabilities	394	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	20,464	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	$ 409	$ 103

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

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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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