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Note 3 - Loans Receivable and Allowance for Credit Losses - Loans - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		$ 2,629,657	$ 2,533,821
Financing Receivable, Nonaccrual	[1]	18,374	13,601
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		4,187	8,967
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,496	2,191
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		12,806	11,073
Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		18,489	22,231
Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2,611,168	2,511,590
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		932,689	871,337
Financing Receivable, Nonaccrual	[1]	11,197	7,750
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		563	845
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		9,994	6,604
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		10,557	7,449
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		922,132	863,888
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		170,714	170,396
Financing Receivable, Nonaccrual	[1]	2,047	2,771
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	845
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		844	1,625
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		844	2,470
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		169,870	167,926
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		172,713	174,921
Financing Receivable, Nonaccrual	[1]	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		563	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		563	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		172,150	174,921
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		326,684	280,798
Financing Receivable, Nonaccrual	[1]	9,150	4,979
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		9,150	4,979
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		9,150	4,979
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		317,534	275,819
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		262,578	245,222
Financing Receivable, Nonaccrual	[1]	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		262,578	245,222
Residential Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		769,903	742,371
Financing Receivable, Nonaccrual	[1]	2,116	425
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		122	3,349
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	253
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		788	327
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		910	3,929
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		768,993	738,442
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		629,712	617,322
Financing Receivable, Nonaccrual	[1]	1,799	164
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	2,507
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	253
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		788	76
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		788	2,836
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		628,924	614,486
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		86,895	75,147
Financing Receivable, Nonaccrual	[1]	317	261
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		122	20
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	251
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		122	271
Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		86,773	74,876
Residential Portfolio Segment [Member] | Residential Custom Construction [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		53,296	49,902
Financing Receivable, Nonaccrual	[1]	0	0
Residential Portfolio Segment [Member] | Residential Custom Construction [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	822
Residential Portfolio Segment [Member] | Residential Custom Construction [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Residential Portfolio Segment [Member] | Residential Custom Construction [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Residential Portfolio Segment [Member] | Residential Custom Construction [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	822
Residential Portfolio Segment [Member] | Residential Custom Construction [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		53,296	49,080
Consumer Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		600,779	620,181
Financing Receivable, Nonaccrual	[1]	4,462	1,980
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		3,502	4,655
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,496	1,938
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,425	811
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		6,423	7,404
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		594,356	612,777
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		527,597	541,946
Financing Receivable, Nonaccrual	[1]	3,802	1,677
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		3,306	3,920
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,470	1,787
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,288	758
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		6,064	6,465
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		521,533	535,481
Consumer Portfolio Segment [Member] | Marine Loans [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		70,220	74,931
Financing Receivable, Nonaccrual	[1]	620	289
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		194	718
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		24	150
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		98	40
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		316	908
Consumer Portfolio Segment [Member] | Marine Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		69,904	74,023
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2,962	3,304
Financing Receivable, Nonaccrual	[1]	40	14
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2	17
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2	1
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		39	13
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		43	31
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2,919	3,273
Commercial Business Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		326,286	299,932
Financing Receivable, Nonaccrual	[1]	599	3,446
Commercial Business Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	118
Commercial Business Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		599	3,331
Commercial Business Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		599	3,449
Commercial Business Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		325,687	296,483
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		311,173	287,014
Financing Receivable, Nonaccrual	[1]	599	3,446
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	118
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		599	3,331
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		599	3,449
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		310,574	283,565
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		15,113	12,918
Financing Receivable, Nonaccrual	[1]	0	0
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		0	0
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		$ 15,113	$ 12,918
[1] Includes loans less than 90 days past due as applicable.

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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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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