Note 11 - Regulatory Matters - Regulatory Ratios of the Consolidated Company and Its Subsidiary Banks (Details)		Mar. 31, 2017		Dec. 31, 2016
Consolidated Entities [Member]
Common Equity Tier 1 Risk-based Capital	[1]	16.37%		16.43%
Tier 1 Risk-based Capital	[1]	19.17%		19.28%
Total Risk-based Capital	[1]	19.99%		20.10%
Tier 1 Leverage	[2]	13.36%		13.20%
United Bank and Capital Trust Company [Member]
Common Equity Tier 1 Risk-based Capital	[1]	15.55%			[3]
Tier 1 Risk-based Capital	[1]	15.55%			[3]
Total Risk-based Capital	[1]	16.37%			[3]
Tier 1 Leverage	[2]	10.86%			[3]
Farmers Bank and Capital Trust Company [Member]
Common Equity Tier 1 Risk-based Capital	[1]		[3]	16.53%
Tier 1 Risk-based Capital	[1]		[3]	16.53%
Total Risk-based Capital	[1]		[3]	17.23%
Tier 1 Leverage	[2]		[3]	9.80%
United Bank and Trust Company [Member]
Common Equity Tier 1 Risk-based Capital	[1]		[3]	15.54%
Tier 1 Risk-based Capital	[1]		[3]	15.54%
Total Risk-based Capital	[1]		[3]	16.47%
Tier 1 Leverage	[2]		[3]	12.38%
First Citizens Bank [Member]
Common Equity Tier 1 Risk-based Capital	[1]		[3]	13.56%
Tier 1 Risk-based Capital	[1]		[3]	13.56%
Total Risk-based Capital	[1]		[3]	14.16%
Tier 1 Leverage	[2]		[3]	9.76%
Citizens Bank of Northern Kentucky, Inc [Member]
Common Equity Tier 1 Risk-based Capital	[1]		[3]	15.24%
Tier 1 Risk-based Capital	[1]		[3]	15.24%
Total Risk-based Capital	[1]		[3]	16.40%
Tier 1 Leverage	[2]		[3]	10.68%

[1] Common Equity Tier 1 Risked-based, Tier 1 Risk-based, and Total Risk-based Capital ratios are computed by dividing a bank's Common Equity Tier 1, Tier 1 or Total Capital, as defined by regulation, by a risk-weighted sum of the bank's assets, with the risk weighting determined by general standards established by regulation.

[2] Tier 1 Leverage ratio is computed by dividing a bank's Tier 1 Capital by its total quarterly average assets, as defined by regulation.

[3] In February 2017, the Company merged United Bank & Trust Company, First Citizens Bank, Inc., and Citizens Bank of Northern Kentucky, Inc. into Farmers Bank & Capital Trust Company in Frankfort, KY, the name of which was immediately changed to United Bank & Capital Trust Company.