Stock Based Awards (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

Restricted share activity is summarized as follows:

	Shares Outstanding			Weighted Average Grant Date Fair Value
Unvested restricted stock at January 1, 2010		140,980		$	22.70
Restricted stock granted		88,550		$	23.36
Restricted stock vested		(42,070	)	$	25.72
Restricted stock forfeited		(20,610	)	$	25.06
Unvested restricted stock at December 31, 2010		166,850		$	22.00
Restricted stock granted		105,050		$	22.01
Restricted stock vested		(42,830	)	$	22.48
Restricted stock forfeited		(12,150	)	$	22.22
Unvested restricted stock at December 31, 2011		216,920		$	21.74
Restricted stock granted		94,850			24.40
Restricted stock vested		(55,870	)		21.87
Restricted stock forfeited		(5,720	)		24.32
Unvested restricted stock at December 31, 2012		250,180		$	22.66