Note 14 - Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Defined Benefit Plan, Benefits Payment [Table Text Block]

(Dollars in thousands)
2016				2015			2014
Date Paid	Amount			Date Paid	Amount		Date Paid	Amount
10/15/16	$	33	*	10/15/2015	$	42	10/15/2014	$	46
				12/30/2015		151	12/30/2014		164
Total	$	33			$	193		$	210

Employee Stock Ownership Plan (ESOP) Disclosures [Table Text Block]

	2016			2015			2014
Shares held by participants beginning of the year		334,277			336,024			347,887
Shares allocated to participants		24,377			24,317			24,317
Shares distributed to participants		(18,784	)		(26,064	)		(36,180	)
Shares held by participants end of year		339,870			334,277			336,024
Unreleased shares beginning of the year		304,123			328,440			352,757
Shares released during year		(24,377	)		(24,317	)		(24,317	)
Unreleased shares end of year		279,746			304,123			328,440
Total ESOP shares end of year		619,616			638,400			664,464
Fair value of unreleased shares at December 31	$	4,895,555			3,512,621			4,072,656

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

												Unvested options
	Shares Available For Grant			Unvested Restricted Shares Outstanding			Options Outstanding			Award Value/ Weighted Average Exercise Price		Number			Weighted Average Grant Date Fair Value		Vesting Period (in years)
2001 Plan
December 31, 2013		0			0			45,540		$	28.21		0
Forfeited/expired		0			0			(30,540	)		27.33		0
December 31, 2014		0			0			15,000			30.00		0
Forfeited/expired		0			0			(15,000	)		30.00		0
December 31, 2015		0			0			0			0.00		0
December 31, 2016		0			0			0			0.00		0
2009 Plan
December 31, 2013		121,053			101,806			15,000		$	4.77		3,000		$	4.41
Granted January 7, 2014		(28,627	)		23,856			0			N/A		0					3
Granted May 27, 2014		(26,561	)		22,134			0			N/A		0					3
Forfeited/expired		30,540			0			0					0
Vested		0			(62,938	)		0					(3,000	)		4.41
December 31, 2014		96,405			84,858			15,000			4.77		0
Granted January 27, 2015		(11,903	)		9,919			0			N/A		0					3
Granted April 28, 2015		(3,158	)		2,632			0			N/A		0					1
Granted June 8, 2015		(398	)		332			0			N/A		0					1
Forfeited/expired		395			(329	)		0					0
Forfeited/expired		15,000			0			0					0
Vested		0			(58,526	)		0					0
December 31, 2015		96,341			38,886			15,000			4.77		0
Granted January 26, 2016		(4,087	)		3,406			0			N/A		0					3
Granted January 26, 2016		(34,229	)		0			34,229			11.21		34,229			4.04		3
Granted April 26, 2016		(3,149	)		2,624			0			N/A		0					1
Vested		0			(24,320	)		0					0
December 31, 2016		54,876			20,596			49,229			9.25		34,229			4.04
Total all plans		54,876			20,596			49,229		$	9.25		34,229		$	4.04

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Date of Grant	Exercise Price		Number Outstanding		Weighted Average Remaining Contractual Life in Years		Number Exercisable		Number Unexercisable		Unrecognized Compensation Expense		Weighted Average Years Over Which Unrecognized Compensation will be Recognized
May 6, 2009	$	4.77		15,000		2.4		15,000		0	$	0		N/A
January 26, 2016	$	11.21		34,229		9.1		0		34,229		59,528		2.1
				49,229				15,000		34,229	$	59,528

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2016
Risk-free interest rate		2.10	%
Expected life (in years)		10
Expected volatility		22.83	%
Expected dividends		0.00	%