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Note 3 - LOANS/LEASES RECEIVABLE (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans/leases receivable	$ 7,178,921	$ 7,178,921	$ 6,784,404
Accrued interest on loans	32,200	32,200	30,900
Loan and lease modifications	0	0
C&I
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans/leases receivable	1,717,342	1,717,342	1,902,923
C&I | m2 Lease Funds, LLC
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans/leases receivable	206,900	206,900	303,200
Residential Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for sale	$ 1,500	$ 1,500	$ 2,100

X

- Definition

Amortized cost includes net investment in lease excluding accrued interest, before allowance for credit loss, of financing receivable.

+ References

No definition available.

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- Definition

Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
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- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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