Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

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

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

Options activity under the stock-based compensation plans as of September 30, 2015 and changes during the nine months ended September 30, 2015 were as follows:

	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at December 31, 2014		882,657		$	5.65
Exercised		(340,492	)	$	4.19
Canceled/expired		—
Forfeited		(4,731	)
Outstanding at September 30, 2015		537,434		$	6.50		3.43	$	6,878,825
Exercisable at September 30, 2015		532,636		$	6.44		3.38	$	6,829,750

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

The fair value of the stock granted was based on the closing market price of the Company’s common stock as of the grant date. Generally, grants of restricted shares to date vest one-third, each, on the first, second and third anniversaries of the grant date.

	Nonvested Shares			Weighted- Average Grant Date Fair Value
Nonvested at December 31, 2014		50,203		$	11.79
Granted		67,906			18.50
Vested		(20,565	)		10.76
Forfeited/cancelled/expired		—			—
Outstanding at September 30, 2015		97,544		$	16.62

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:

	Shares		Weighted- Average Grant Date Fair Value
Unearned at June 30, 2015		94,585	$	19.46
Awarded		—		—
Forfeited		—		—
Expired		—		—
Unearned at September 30, 2015		94,585	$	19.46