Note 2 - Acquisition - Unaudited Pro Forma Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021
Commonwealth [Member]
Net interest income		$ 56,984	$ 55,595	$ 110,777		$ 111,106
Provision for credit losses		(200)	(3,167)	(2,350)	[1]	(4,242)	[1]
Non-interest income		21,940	29,396	44,083		59,430
Non-interest expense		44,675	52,563	91,964	[2]	102,993	[2]
Income before taxes		34,449	35,595	65,246		71,785
Income tax expense		7,547	6,735	14,014		13,676
Net income		26,902	28,860	51,232		58,109
Less net income attributed to noncontrolling interest		108	94	159		174
Net income available to stockholders		$ 26,794	$ 28,766	$ 51,073		$ 57,935
Basic (in dollars per share)		$ 0.92	$ 0.99	$ 1.76		$ 2.00
Diluted (in dollars per share)		$ 0.91	$ 0.98	$ 1.74		$ 1.98
Basic weighted average shares outstanding (in shares)		29,131	29,049	29,094		29,022
Diluted weighted average shares outstanding (in shares)		29,346	29,288	29,355		29,263
Kentucky Bancshares [Member]
Net interest income			$ 47,465			$ 94,043
Provision for credit losses	[3]		(3,167)			(4,542)
Non-interest income			18,078			36,090
Non-interest expense	[4]		37,257			71,803
Income before taxes			31,453			62,872
Income tax expense			6,026			11,979
Net income			25,427			50,893
Less net income attributed to noncontrolling interest			0			0
Net income available to stockholders			$ 25,427			$ 50,893
Basic (in dollars per share)			$ 0.95			$ 1.91
Diluted (in dollars per share)			$ 0.94			$ 1.89
Basic weighted average shares outstanding (in shares)			26,687			26,670
Diluted weighted average shares outstanding (in shares)			26,926			26,911

[1] Excludes $4.4 million in merger related credit loss expense for the six months ended June 30, 2022.Excludes $7.4 million in merger related credit loss expense for the three and six months ended June 30, 2021, respectively.

[2] Excludes $24.1 million in pre-tax merger expenses for the six months ended June 30, 2022. Excludes $18.1 million and $18.5million in pre-tax merger expenses for the three and six months ended June 30, 2021, respectively.

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

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