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Stock Based Compensation (Schedule Of Restricted Common Stock Grants) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock Based Compensation [Abstract]
Restricted stock granted, Shares	46,281	61,636	35,004
Restricted stock granted, Grant Date Fair Value per Share	$ 13.92	$ 14.62	$ 13.22

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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