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Note 14 - Financial Derivatives (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] |
|  | September 30, 2025 |  |  | December 31, 2024 |
|  | ($ In thousands) |
Fair value swap hedges: |  |  |
Notional |  | $ | 625,987 |  |  | $ | 875,117 |
Weighted average fixed rate-pay |  |  | 4.03 | % |  |  | 3.55 | %
Weighted average variable rate spread |  |  | 0.19 | % |  |  | 0.22 | %
Weighted average variable rate-receive |  |  | 4.51 | % |  |  | 5.36 | %
Net (loss)/gain(1) |  | $ | (2,594 | ) |  | $ | 3,644 |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, 2025 |  |  | September 30, 2024 |  |  | September 30, 2025 |  |  | September 30, 2024 |
Periodic net settlement of swaps (2) |  | $ | 510 |  |  | $ | 3,646 |  |  | $ | 2,844 |  |  | $ | 14,121 |
(1) the amount is included in other non-interest income. |
(2) the amount of periodic net settlement of interest rate swaps was included in interest income. |
Derivatives Not Designated as Hedging Instruments [Table Text Block] |
Derivative financial instruments not designated as hedging instruments: |  | September 30, 2025 |  |  | December 31, 2024 |
|  | ($ In thousands) |
Notional amounts: |  |  |  |  |  |  |  |
Forward, and swap contracts with positive fair value |  | $ | 1,082,947 |  |  | $ | 743,257 |
Forward, and swap contracts with negative fair value |  | $ | 1,090,933 |  |  | $ | 852,409 |
Fair value: |  |  |  |  |  |  |  |
Forward, and swap contracts with positive fair value |  | $ | 26,626 |  |  | $ | 33,237 |
Forward, and swap contracts with negative fair value |  | $ | (26,490 | ) |  | $ | (33,531 | )

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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
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- Definition Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
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