Note 18 - Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Text Block [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

											To Be Well-Capitalized
						For Capital					Under Prompt Corrective
(Dollars in thousands)	Actual					Adequacy Purposes					Action Provisions
December 31, 2015	Amount		Ratio			Amount		Ratio			Amount		Ratio
Common Equity Tier 1 Risk-based Capital1
Consolidated	$	172,871		14.91	%	$	52,184		4.50	%		N/A		N/A
Farmers Bank		63,552		15.57			18,366		4.50		$	26,529		6.50	%
United Bank		65,862		18.67			15,879		4.50			22,936		6.50
First Citizens		28,743		13.55			9,543		4.50			13,784		6.50
Citizens Northern		25,770		14.42			8,044		4.50			11,619		6.50
Tier 1 Risk-based Capital1
Consolidated	$	220,371		19.00	%	$	69,579		6.00	%		N/A		N/A
Farmers Bank		63,552		15.57			24,488		6.00		$	32,651		8.00	%
United Bank		65,862		18.67			21,171		6.00			28,228		8.00
First Citizens		28,743		13.55			12,724		6.00			16,965		8.00
Citizens Northern		25,770		14.42			10,725		6.00			14,300		8.00
Total Risk-based Capital 1
Consolidated	$	230,686		19.89	%	$	92,772		8.00	%		N/A		N/A
Farmers Bank		66,728		16.35			32,651		8.00		$	40,814		10.00	%
United Bank		69,456		19.68			28,228		8.00			35,286		10.00
First Citizens		30,048		14.17			16,965		8.00			21,207		10.00
Citizens Northern		28,004		15.67			14,300		8.00			17,875		10.00
Tier 1 Leverage Capital 2
Consolidated	$	220,371		12.46	%	$	70,746		4.00	%		N/A		N/A
Farmers Bank		63,552		9.20			27,629		4.00		$	34,537		5.00	%
United Bank		65,862		12.89			20,442		4.00			25,553		5.00
First Citizens		28,743		9.20			12,493		4.00			15,617		5.00
Citizens Northern		25,770		10.79			9,555		4.00			11,943		5.00

											To Be Well-Capitalized
						For Capital					Under Prompt Corrective
(Dollars in thousands)	Actual					Adequacy Purposes					Action Provisions
December 31, 2014	Amount		Ratio			Amount		Ratio			Amount		Ratio
Tier 1 Risk-based Capital1
Consolidated	$	215,090		19.75	%	$	43,569		4.00	%		N/A		N/A
Farmers Bank		65,744		17.71			14,852		4.00		$	22,278		6.00	%
United Bank		57,691		18.00			12,820		4.00			19,230		6.00
First Citizens		29,703		13.66			8,700		4.00			13,049		6.00
Citizens Northern		24,575		14.46			6,798		4.00			10,197		6.00
Total Risk-based Capital 1
Consolidated	$	228,710		21.00	%	$	87,137		8.00	%		N/A		N/A
Farmers Bank		69,418		18.70			29,704		8.00		$	37,130		10.00	%
United Bank		61,728		19.26			25,640		8.00			32,050		10.00
First Citizens		31,094		14.30			17,399		8.00			21,749		10.00
Citizens Northern		26,703		15.71			13,596		8.00			16,995		10.00
Tier 1 Leverage Capital 2
Consolidated	$	215,090		12.04	%	$	71,461		4.00	%		N/A		N/A
Farmers Bank		65,744		9.40			27,965		4.00		$	34,956		5.00	%
United Bank		57,691		11.08			20,829		4.00			26,037		5.00
First Citizens		29,703		9.44			12,587		4.00			15,734		5.00
Citizens Northern		24,575		10.11			9,723		4.00			12,153		5.00