Note 14 - Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Defined Benefit Plan, Benefits Payment [Table Text Block]

201 7				201 6			201 5
Date Paid	Amount			Date Paid	Amount		Date Paid	Amount
1/6/2017	$	119	(1)		$	0		$	0
10/15/2017		27		10/15/16		33	10/15/2015		42
12/27/2017		99				0	12/30/2015		151
Total	$	245			$	33		$	193

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

	2017			2016			2015
Shares held by participants beginning of the year		339,870			334,277			336,024
Shares allocated to participants		24,317			24,377			24,317
Shares distributed to participants		(7,052	)		(18,784	)		(26,064	)
Shares held by participants end of year		357,135			339,870			334,277
Unreleased shares beginning of the year		279,746			304,123			328,440
Shares released during year		(24,317	)		(24,377	)		(24,317	)
Unreleased shares end of year		255,429			279,746			304,123
Total ESOP shares end of year		612,564			619,616			638,400
Fair value of unreleased shares at December 31	$	4,878,694			4,895,555			3,512,621

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

												Unvested options
	Shares Available For Grant			Unvested Restricted S hares O utstanding			Options O utstanding			Award Value/ Weighted Average Exercise P rice		Number			Weighted Average Grant Date Fair V alue		Vesting Period (in years)
2001 Plan
December 3 1, 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
December 31, 2017		0			0			0			0.00		0
2009 Plan
December 31, 2014		96,405			84,858			15,000		$	4.77		0
Granted January 2 7, 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
Transferred from 2001 Plan		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
Granted January 31, 2017		(11,164	)		9,303			0			N/A							3
Transferred to 2017 Plan		(43,712	)		0			0			N/A
Vested		0			(15,018	)		0					(11,409	)		4.04
December 31, 2017		0			14,881			49,229		$	9.25		22,820		$	4.04
2017 Plan
April 25, 2017		375,000
Granted May 5 , 2017		(3,420	)		2,280			0			N/A							1
Transferred from 2009 Plan		43,712			0			0
December 31, 2017		415,292			2,280			0			N/A		0
Total all plans		415,292			17,161			49,229		$	9.25		22,820		$	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		1.4		15,000		0	$	0		N/A
January 26, 2016	$	11.21		34,229		8.1		11,409		22,820		18,062		1.1
				49,229				26,409		22,820	$	18,062

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

	201 6
Risk-free interest rate		2.10	%
Expected life (in years)		10
Expected volatility		22.83	%
Expected dividends		0.00	%