Note 7 - Goodwill - Carrying Value of Goodwill (Details) - USD ($) $ in Thousands			12 Months Ended
	Mar. 07, 2022	May 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill			$ 194,074	$ 135,830	$ 12,513
Balance at beginning of period			135,830	12,513	12,513
Goodwill recorded from acquisitions			66,694	124,016	0
Provisional period adjustments			0	(699)	0
Disposition of LFA			(8,450)	0	0
Impairment			0	0	0
Balance at end of period			194,074	135,830	$ 12,513
Commonwealth [Member]
Goodwill	$ 67,000		58,244	0
Balance at beginning of period			0
Goodwill recorded from acquisitions	66,694
Balance at end of period	$ 67,000		58,244	0
Kentucky Bancshares [Member]
Goodwill			123,317	123,317
Balance at beginning of period			123,317
Goodwill recorded from acquisitions		$ 123,317
Balance at end of period			123,317	123,317
King Southern Bancorp [Member]
Goodwill			11,831	11,831
Balance at beginning of period			11,831
Balance at end of period			11,831	11,831
Austin State Bank [Member]
Goodwill			682	682
Balance at beginning of period			682
Balance at end of period			$ 682	$ 682