Note 7 - Loans and the Allowance for Credit Losses - Summary of (Reversal of) Provision for Credit Losses (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Operating provision for credit losses | $ 4,935 | $ 5,445 | $ 17,555 | $ 16,628 |
| Provision for credit losses on PCD loans | (9) | 0 | 865 | 0 |
| Provision for credit losses | 5,000 | 5,500 | 18,500 | 44,700 |
| Initial provision related to acquisition - loans | 0 | 0 | 27,307 | |
| Unfunded Loan Commitment [Member] | ||||
| Provision for credit losses - unfunded commitments | $ 74 | $ 55 | $ 80 | $ 765 |
| X | ||||||||||
- Definition Amount of reversal of expense due to improvements in expected cash flows. No definition available.
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| X | ||||||||||
- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, excluding accrued interest, of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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