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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, 2023	Dec. 31, 2022	Dec. 31, 2021
Beginning balance	$ 27,992	$ 25,635	$ 26,172
Provision for credit losses on loans	5,770	6,623	500
Charge-offs	(3,476)	(2,465)	(1,793)
Recoveries	1,248	1,058	756
Net charge-offs	(2,228)	(1,407)	(1,037)
Total ending ACL balance	31,534	27,992	25,635
Loans individually evaluated for impairment			1,163
Loans collectively evaluated for impairment			24,472
Loans individually evaluated for impairment			5,829
Loans collectively evaluated for impairment			1,748,346
Ending balance	2,433,015	2,218,852	1,754,175
Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(2,859)
Total ending ACL balance			(2,859)
Real Estate Portfolio Segment [Member]
Beginning balance	12,123	14,798	13,846
Provision for credit losses on loans	1,994	2,559	952
Charge-offs	(10)	0	0
Recoveries	0	0	0
Net charge-offs	(10)	0	0
Total ending ACL balance	14,107	12,123	14,798
Loans individually evaluated for impairment			23
Loans collectively evaluated for impairment			14,775
Loans individually evaluated for impairment			781
Loans collectively evaluated for impairment			1,089,522
Ending balance	1,530,381	1,421,260	1,090,303
Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(5,234)
Total ending ACL balance			(5,234)
Consumer Portfolio Segment [Member]
Beginning balance	12,109	4,280	6,696
Provision for credit losses on loans	3,465	3,158	(1,417)
Charge-offs	(3,465)	(2,465)	(1,755)
Recoveries	1,248	1,058	756
Net charge-offs	(2,217)	(1,407)	(999)
Total ending ACL balance	13,357	12,109	4,280
Loans individually evaluated for impairment			219
Loans collectively evaluated for impairment			4,061
Loans individually evaluated for impairment			629
Loans collectively evaluated for impairment			421,414
Ending balance	646,753	569,572	422,043
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		6,078
Total ending ACL balance			6,078
Commercial Business Portfolio Segment [Member]
Beginning balance	3,760	6,536	4,939
Provision for credit losses on loans	311	906	1,635
Charge-offs	(1)	0	(38)
Recoveries	0	0	0
Net charge-offs	(1)	0	(38)
Total ending ACL balance	4,070	3,760	6,536
Loans individually evaluated for impairment			921
Loans collectively evaluated for impairment			5,615
Loans individually evaluated for impairment			4,419
Loans collectively evaluated for impairment			237,410
Ending balance	255,881	228,020	241,829
Commercial Business Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		(3,682)
Total ending ACL balance			(3,682)
Unallocated Financing Receivables [Member]
Beginning balance	0	21	691
Provision for credit losses on loans	0	0	(670)
Charge-offs	0	0	0
Recoveries	0	0	0
Net charge-offs	0	0	0
Total ending ACL balance	$ 0	0	21
Loans individually evaluated for impairment			0
Loans collectively evaluated for impairment			21
Loans individually evaluated for impairment			0
Loans collectively evaluated for impairment			0
Ending balance			0
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		$ (21)
Total ending ACL balance			$ (21)

X

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

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

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The balance of financing receivables that were collectively evaluated for impairment.

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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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