Note 6 - Goodwill - Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill	$ 194,074	$ 194,074	$ 194,074
Balance at beginning of period	194,074	194,074	135,830
Added from acquisition	0	0	66,694
Disposition of LFA	0	0	(8,450)
Impairment	0	0	$ 0
Commonwealth [Member]
Goodwill	58,244	58,244
Balance at beginning of period	58,244
Kentucky Bancshares [Member]
Goodwill	123,317	123,317
Balance at beginning of period	123,317
King Southern Bancorp [Member]
Goodwill	11,831	11,831
Balance at beginning of period	11,831
Austin State Bank [Member]
Goodwill	682	$ 682
Balance at beginning of period	$ 682