Note 7 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Goodwill	$ 375,696		$ 375,696		$ 375,696
Goodwill, Impairment Loss					$ 0
Intangible Asset, Finite-Lived, Impairment Loss	0	$ 0	0	$ 0
Intangible Asset, Finite-Lived, Amortization Expense	217	250	435	500
Core Deposits [Member]
Intangible Asset, Finite-Lived, Amortization Expense	$ 217	$ 250	$ 435	$ 500

Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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+ Details

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References

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+ Details

- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

+ References + Details