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Note 6 - Loans and the Allowance for Credit Losses - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Gross loans	$ 11,308,131	$ 8,280,482
Net deferred loan fees	(4,495)	(5,672)
Total loans receivable	11,303,636	8,274,810
Commercial Portfolio Segment [Member]
Gross loans	1,622,975	1,532,730
Commercial Real Estate Portfolio Segment [Member]
Gross loans	7,721,070	5,880,679
Commercial Construction Portfolio Segment [Member]
Gross loans	728,615	616,246
Residential Portfolio Segment [Member]
Gross loans	1,233,305	249,691
Consumer Portfolio Segment [Member]
Gross loans	$ 2,166	$ 1,136

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
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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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- Definition

Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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