Note 13 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Goodwill, Ending Balance	$ 375,696		$ 375,696
Goodwill, Impairment Loss			$ 0
Amortization of Intangible Assets	339	$ 250
Core Deposits [Member]
Impairment of Intangible Assets, Finite-Lived	88	0
Amortization of Intangible Assets	$ 339	$ 250