Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Stock-based Compensation [Abstract]

Schedule of Nonvested Share Activity [Table Text Block]

The following table summarizes the restricted stock award and performance unit award activity for the period ended September 30, 2015:

	Restricted	Performance		Weighted Average
	Stock	Stock		Grant Date
	Units	Units		Fair Value
Outstanding at December 31, 2014	108,237	71,990	$	36.25
Granted	29,656	41,114		47.88
Vested	(34,839)	(23,877)		31.66
Adjustment for incentive awards not expected to vest	-	(45,384)		43.97
Canceled	(1,000)	-		38.44
Outstanding at September 30, 2015	102,054	43,843	$	41.32