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Note 3 - Loans Receivable and Allowance for Credit Losses - Loans - Schedule of Portfolio Loan Composition (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Gross	$ 2,629,657		$ 2,533,821
ACL on loans	(30,056)	$ (32,189)	(31,870)	$ (31,232)	$ (31,238)	$ (31,534)
Total loans receivable, net	2,599,601		2,501,951
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Gross	932,689		871,337
ACL on loans	(4,792)	(7,070)	(7,001)	(6,568)	(6,671)	(7,293)
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Gross	170,714		170,396
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Financing Receivable, Gross	172,713		174,921
Commercial Real Estate Portfolio Segment [Member] | Commercial and Speculative Construction and Development [Member]
Financing Receivable, Gross	326,684		280,798
Commercial Real Estate Portfolio Segment [Member] | Multifamily [Member]
Financing Receivable, Gross	262,578		245,222
Residential Portfolio Segment [Member]
Financing Receivable, Gross	769,903		742,371
ACL on loans	(7,489)	(7,654)	(7,440)	(7,566)	(7,417)	(6,814)
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member]
Financing Receivable, Gross	629,712		617,322
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing Receivable, Gross	86,895		75,147
Residential Portfolio Segment [Member] | Custom Construction [Member]
Financing Receivable, Gross	53,296		49,902
Consumer Portfolio Segment [Member]
Financing Receivable, Gross	600,779		620,181
ACL on loans	(15,833)	(15,075)	(14,185)	(13,752)	(13,253)	(13,357)
Consumer Portfolio Segment [Member] | Indirect Home Improvement Loan [Member]
Financing Receivable, Gross	527,597		541,946
Consumer Portfolio Segment [Member] | Marine Loans [Member]
Financing Receivable, Gross	70,220		74,931
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member]
Financing Receivable, Gross	2,962		3,304
Commercial Business Portfolio Segment [Member]
Financing Receivable, Gross	326,286		299,932
ACL on loans	(1,942)	$ (2,390)	(3,244)	$ (3,346)	$ (3,897)	$ (4,070)
Commercial Business Portfolio Segment [Member] | Commercial And Industrial [Member]
Financing Receivable, Gross	311,173		287,014
Commercial Business Portfolio Segment [Member] | Warehouse Lending Loan [Member]
Financing Receivable, Gross	$ 15,113		$ 12,918

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on 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

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+ 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

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+ 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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