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Note 4 - Loans Receivable and Allowance for Credit Losses on Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Gross	$ 2,533,821	$ 2,433,015
Commercial Real Estate [Member]
Financing Receivable, Gross	7,750	5,787
Residential Real Estate [Member]
Financing Receivable, Gross	425	269
Other Nonreal Estate [Member]
Financing Receivable, Gross	5,412	4,888
Collateral Dependent Loans [Member]
Financing Receivable, Gross	13,587	10,944
Real Estate Portfolio Segment [Member]
Financing Receivable, Gross	1,613,708	1,530,381
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	7,750	5,787
Real Estate Portfolio Segment [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	425	269
Real Estate Portfolio Segment [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	8,175	6,056
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	2,771	1,088
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	2,771	1,088
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Gross	330,700	303,054
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	4,979	4,699
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	0
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	4,979	4,699
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member]
Financing Receivable, Gross	75,147	69,488
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	261	173
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	261	173
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member]
Financing Receivable, Gross	617,322	567,742
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	164	96
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	0	0
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	164	96
Consumer Portfolio Segment [Member]
Financing Receivable, Gross	620,181	646,753
Consumer Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	1,966	2,205
Consumer Portfolio Segment [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	1,966	2,205
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member]
Financing Receivable, Gross	541,946	569,903
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	1,677	1,863
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	1,677	1,863
Consumer Portfolio Segment [Member] | Marine Loans [Member]
Financing Receivable, Gross	74,931	73,310
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	289	342
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	289	342
Commercial Business Portfolio Segment [Member]
Financing Receivable, Gross	299,932	255,881
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member]
Financing Receivable, Gross	287,014	238,301
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	3,446	2,683
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	$ 3,446	$ 2,683

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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