Note 2 - Acquisition - Unaudited Pro Forma Information (Details) - Kentucky Bancshares [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net interest income		$ 47,465	$ 42,664	$ 94,043	$ 84,156
Provision for loan losses	[1]	(3,167)	7,525	(4,542)	15,075
Non-interest income		18,078	16,621	36,090	32,719
Non-interest expense	[2]	37,257	32,903	71,803	65,864
Income before taxes		31,453	18,857	62,872	35,936
Income tax expense		6,026	2,518	11,979	4,716
Net income		$ 25,427	$ 16,339	$ 50,893	$ 31,220
Basic (in dollars per share)		$ 0.95	$ 0.62	$ 1.91	$ 1.19
Diluted (in dollars per share)		$ 0.94	$ 0.62	$ 1.89	$ 1.18
Basic weighted average shares outstanding (in shares)		26,687	26,363	26,670	26,341
Diluted weighted average shares outstanding (in shares)		26,926	26,542	26,911	26,540

[1] Excludes $7.4 million in merger related credit loss expense for the three and six months ended June 30, 2021, respectively.

[2] Excludes $18.1 million and $18.5 million in pre-tax merger expenses for the three and six months ended June 30, 2021, respectively.