Note 2 - Business Combination - Schedule of PCD Loans Acquired (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 01, 2025 |
Mar. 31, 2026 |
Dec. 31, 2025 |
|
| Total purchased credit-deteriorated loans | $ 207,621 | $ 221,130 | |
| First of Long Island Corporation [Member] | |||
| Total purchased credit-deteriorated loans | $ 271,904 | ||
| PCD Loans, discount | (34,394) | ||
| PCD Loans, allowance for credit losses | (43,336) | ||
| PCD Loans, fair value | 194,174 | ||
| Non-PCD Loans, unpaid principal balance | 2,860,661 | ||
| Non-PCD Loans, discount | (171,884) | ||
| Non-PCD Loans, allowance for credit losses | 0 | ||
| Non-PCD Loans, fair value | 2,688,777 | ||
| Total Acquired Loans, unpaid principal balance | 3,132,565 | ||
| Total Acquired Loans, discount | (206,278) | ||
| Total Acquired Loans, allowance for credit losses | (43,336) | ||
| Total Acquired Loans, fair value | $ 2,882,951 |
| X | ||||||||||
- Definition Amount of estimated contractual cash flow not expected to be collected for receivable purchased, acquired in business combination. No definition available.
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| X | ||||||||||
- Definition Discount of receivable purchased, acquired in business combination. No definition available.
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| X | ||||||||||
- Definition Fair value of receivable purchased, acquired in business combination. No definition available.
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| X | ||||||||||
- Definition Amount of gross contractual receivable purchased, acquired in business combination. No definition available.
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| X | ||||||||||
- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the discount amounts, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. No definition available.
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| X | ||||||||||
- Definition Amount of estimated contractual cash flow not expected to be collected for receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Fair value of receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of gross contractual receivable purchased without credit deterioration, acquired in business combination. Excludes purchased financial asset with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount at par value of financing receivable purchased with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount at purchase price of financing receivable purchased with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of discount (premium) attributable to other factors on financing receivable purchased with credit deterioration. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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