Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block]

A summary of the status of these stock option plans is presented in the following table:

			Weighted
			Average
			Exercisable
	Number		Price
Outstanding at December 31, 2014		483,629	$	10.20
Granted		52,689		15.05
Exercised		(24,292)		8.79
Forfeited		(3,289)		10.83
Share conversion		23,468		9.71
Retained by Cornerstone shareholders in merger		285,209		11.22
Outstanding at December 31, 2015		817,414	$	10.62

			Weighted
			Average
			Exercisable
	Number		Price
Outstanding at December 31, 2013		487,431	$	10.21
Exercised		(3,242)		10.69
Forfeited		(560)		11.00
Outstanding at December 31, 2014		483,629	$	10.20

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

Information pertaining to options outstanding at December 31, 2015, is as follows:

		Options Outstanding						Options Exercisable
				Weighted-
				Average		Weighted-				Weighted-
				Remaining		Average				Average
Exercise		Number		Contractual		Exercise		Number		Exercise
Prices		Outstanding		Life		Price		Exercisable		Price
$	4.08		1,250		5.8 years	$	4.08		1,250	$	4.08
	4.40		1,250		5.6 years		4.40		1,250		4.40
	6.20		750		5.3 years		6.20		750		6.20
	6.60		62,250		6.2 years		6.60		62,250		6.60
	6.80		33,875		5.2 years		6.80		33,875		6.80
	9.48		57,250		7.2 years		9.48		57,250		9.48
	9.52		407,400		1.2 years		9.52		407,400		9.52
	9.60		70,000		8.2 years		9.60		70,000		9.60
	10.00		1,250		7.6 years		10.00		1,250		10.00
	10.48		79,220		4.5 years		10.48		79,220		10.48
	11.67		5,250		5.1 years		11.67		4,200		11.67
	14.29		1,050		2.5 years		14.29		1,050		14.29
	14.40		21,630		3.2 years		14.40		21,630		14.40
	15.05		52,689		9.8 years		15.05		-		15.05
	31.96		14,454		2.2 years		31.96		14,454		31.96
	53.00		4,200		0.2 years		53.00		4,200		53.00
	60.80		688		1.3 years		60.80		688		60.80
	61.00		2,958		1.2 years		61.00		2,958		61.00
Outstanding, end of year			817,414		3.4 years		10.62		763,675		10.31

Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Non Vested [Table Text Block]

Information related to non-vested options for the period ended December 31, 2015, is as follows:

			Weighted
			Average
			Grant-Date
	Number		Fair Value
Nonvested at December 31, 2014		7,358	$	2.16
Granted		52,689		12.31
Vested		(6,439)		2.05
Forfeited/expired		(237)		2.02
Share conversion		368		2.17
Nonvested at December 31, 2015		53,739	$	12.12

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

This was determined using the Black-Scholes option-pricing model with the following weighted-average assumptions:

Dividend yield	0.0	%
Expected life	10Years
Expected volatility	81.7	%
Risk-free interest rate	1.54	%