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Note 4 - Loans Receivable and Allowance for Credit Losses on Loans - Schedule of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Gross	$ 2,446,858	$ 2,433,015
Commercial Real Estate [Member]
Financing Receivable, Gross	5,839	5,787
Residential Real Estate [Member]
Financing Receivable, Gross	343	269
Other Nonreal Estate [Member]
Financing Receivable, Gross	5,921	4,888
Collateral Dependent Loans [Member]
Financing Receivable, Gross	12,103	10,944
Real Estate Portfolio Segment [Member]
Financing Receivable, Gross	1,536,184	1,530,381
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	5,839	5,787
Real Estate Portfolio Segment [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	343	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	6,182	6,056
Real Estate Portfolio Segment [Member] | Commercial Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	1,102	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	1,102	1,088
Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Gross	301,346	303,054
Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	4,737	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	4,737	4,699
Real Estate Portfolio Segment [Member] | Home Equity Loan [Member]
Financing Receivable, Gross	73,323	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	170	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	170	173
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member]
Financing Receivable, Gross	580,050	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	173	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	173	96
Consumer Portfolio Segment [Member]
Financing Receivable, Gross	646,132	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	2,580	2,205
Consumer Portfolio Segment [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	2,580	2,205
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member]
Financing Receivable, Gross	568,802	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	2,195	1,863
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	2,195	1,863
Consumer Portfolio Segment [Member] | Marine Loans [Member]
Financing Receivable, Gross	73,921	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	385	342
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	385	342
Commercial Business Portfolio Segment [Member]
Financing Receivable, Gross	264,542	255,881
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member]
Financing Receivable, Gross	256,429	238,301
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member] | Commercial Real Estate [Member]
Financing Receivable, Gross	0	0
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member] | Residential Real Estate [Member]
Financing Receivable, Gross	0	0
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member] | Other Nonreal Estate [Member]
Financing Receivable, Gross	3,341	2,683
Commercial Business Portfolio Segment [Member] | Commercial Loan [Member] | Collateral Dependent Loans [Member]
Financing Receivable, Gross	$ 3,341	$ 2,683

X

- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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