Note 5 - DERIVATIVES AND HEDGING ACTIVITIES - Cash flow hedging and fair value (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Derivative [Line Items]
Interest and Dividend Income	$ 116,673	$ 115,049
Interest expense	56,687	60,350
Interest rate caps \| Interest Expense
Derivative [Line Items]
Gain (loss) on effects of cash flow hedging	(117)	(1,116)
Interest rate swaps \| Interest And Dividend Income
Derivative [Line Items]
Gain on effects of fair value hedging	170	977
Interest rate swaps \| Interest Expense
Derivative [Line Items]
Gain (loss) on effects of cash flow hedging	(209)	(336)
Interest rate swaps and collars \| Interest And Dividend Income
Derivative [Line Items]
Gain (loss) on effects of cash flow hedging	$ (2,083)	$ (2,974)

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.

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The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

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Net gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings.

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Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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