Note 7 - Goodwill - Carrying Value of Goodwill (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Mar. 07, 2022	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill		$ 194,074	$ 194,074	$ 194,074	$ 135,830
Balance at beginning of period			194,074	135,830	12,513
Added from acquisition			0	66,694	124,016
Provisional period adjustment			0	0	(699)
Disposition of LFA			0	(8,450)	0
Impairment			0	0	0
Balance at end of period		194,074	194,074	194,074	$ 135,830
Commonwealth [Member]
Goodwill	$ 67,000	58,244	58,244	58,244
Balance at beginning of period			58,244
Added from acquisition	66,694
Disposition of LFA		(8,500)
Balance at end of period	$ 67,000	58,244	58,244	58,244
Kentucky Bancshares [Member]
Goodwill		123,317	123,317	123,317
Balance at beginning of period			123,317
Balance at end of period		123,317	123,317	123,317
King Southern Bancorp [Member]
Goodwill		11,831	11,831	11,831
Balance at beginning of period			11,831
Balance at end of period		11,831	11,831	11,831
Austin State Bank [Member]
Goodwill		682	682	682
Balance at beginning of period			682
Balance at end of period		$ 682	$ 682	$ 682