Note 4 - Loans Receivable and Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses by Category (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Beginning balance	$ 31,534	$ 27,992	$ 25,635
Provision for credit losses on loans	5,635	5,770	6,623
Charge-offs	(7,135)	(3,476)	(2,465)
Recoveries	1,836	1,248	1,058
Net charge-offs	(5,299)	(2,228)	(1,407)
Ending balance	31,870	31,534	27,992
Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance			(2,859)
Real Estate Portfolio Segment [Member]
Beginning balance	14,107	12,123	14,798
Provision for credit losses on loans	334	1,994	2,559
Charge-offs	0	(10)	0
Recoveries	0	0	0
Net charge-offs	0	(10)	0
Ending balance	14,441	14,107	12,123
Real Estate Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance			(5,234)
Consumer Portfolio Segment [Member]
Beginning balance	13,357	12,109	4,280
Provision for credit losses on loans	5,221	3,465	3,158
Charge-offs	(5,994)	(3,465)	(2,465)
Recoveries	1,601	1,248	1,058
Net charge-offs	(4,393)	(2,217)	(1,407)
Ending balance	14,185	13,357	12,109
Consumer Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance			6,078
Commercial Business Portfolio Segment [Member]
Beginning balance	4,070	3,760	6,536
Provision for credit losses on loans	80	311	906
Charge-offs	(1,141)	(1)	0
Recoveries	235	0	0
Net charge-offs	(906)	(1)	0
Ending balance	3,244	4,070	3,760
Commercial Business Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance			(3,682)
Unallocated Financing Receivables [Member]
Beginning balance	0	0	21
Provision for credit losses on loans	0	0	0
Charge-offs	0	0	0
Recoveries	0	0	0
Net charge-offs	0	0	0
Ending balance	$ 0	$ 0	0
Unallocated Financing Receivables [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance			$ (21)

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. 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 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, excluding accrued interest, of decrease (increase) in allowance for credit loss on financing receivable from writeoff (recovery). Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. 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 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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