Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

Activity under the Company’s option plans as of and for the three months ended March 31, 2018 was as follows:

				Weighted-
				Average
		Weighted-		Remaining
		Average		Contractual
		Exercise		Term	Aggregate
	Shares	Price		(In Years)	Intrinsic Value
Outstanding at December 31, 2017	291,978	$	6.18
Granted	-		-
Exercised	38,697		5.23
Forfeited/cancelled/expired	1,323		14.24
Outstanding at March 31, 2018	251,958	$	6.28	1.91	$	5,673,608
Exercisable at March 31, 2018	249,751	$	6.21	1.88	$	5,641,474

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

The below table represents information regarding restricted shares currently outstanding at March 31, 2018:

			Weighted-
			Average
	Nonvested		Grant Date
	Shares		Fair Value
Nonvested at December 31, 2017	103,078		$	20.41
Granted	22,004			28.00
Vested	(57,668	)		20.40
Forfeited/cancelled/expired	-			-
Nonvested at March 31, 2018	67,414		$	22.70

Schedule of Unearned Performance Unit Awards [Table Text Block]

A summary of the status of unearned performance unit awards and the change during the period is presented in the table below:

				Weighted
				Average Grant
	Units		Units	Date Fair
	(expected)		(maximum)	Value
Unearned at December 31, 2017	151,194		226,791	$	19.19
Awarded	19,614		29,421		31.35
Forfeited	-		-		-
Vested	(69,627	)	-		19.46
Unearned at March 31, 2018	101,181		151,771	$	21.11

Schedule of Unearned Restricted Unit Awards [Table Text Block]

A summary of the status of unearned restricted share units and the change during the period is presented in the table below:

		Weighted
		Average Grant
	Units	Date Fair
	(expected)	Value
Unearned at December 31, 2017	-	$	-
Awarded	29,423		31.35
Forfeited	-		-
Vested	-		-
Unearned at March 31, 2018	29,423	$	31.35