Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

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

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

Activity under the Company’s options as of and for the year ended December 31, 2018 was as follows: 

	Number of Stock Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at December 31, 2017		299,778	$	6.18
Granted		-
Exercised		(189,992)		4.89
Forfeited/cancelled/expired		(1,323)		14.24
Outstanding at December 31, 2018		108,463		8.35		2.8	$	1,097,806
Exercisable at December 31, 2018		108,463	$	8.35		2.8	$	1,097,806

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

Activity under the Company’s restricted shares for the year ended December 31, 2018 was as follows: 

	Nonvested Shares		Weighted- Average Grant Date Fair Value
Nonvested at December 31, 2017		103,078	$	20.41
Granted		24,684		27.86
Vested		(58,668)		18.89
Forfeited/cancelled/expired		(666)		24.25
Nonvested at December 31, 2018		68,428		23.04

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:

	Units (expected)		Units (maximum)		Weighted Average Grant Date Fair Value
Unearned at December 31, 2017		151,194			$	19.19
Awarded		19,614				31.35
Change in Estimate		(15,172)
Vested		(69,627)				19.46
Unearned at December 31, 2018		86,009		151,772	$	22.06

Schedule of Unearned Restricted Unit Awards [Table Text Block]

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

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