Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Goodwill And Intangible Assets
Amortization of intangible assets	$ 332,000	$ 375,000	$ 646,000	$ 677,000
Estimated amortization of intangible assets, remainder of current year			718,000
Estimated amortization of intangible assets, Year One			1,431,000
Estimated amortization of intangible assets, Year Two			1,427,000
Estimated amortization of intangible assets, Year Three			1,426,000
Estimated amortization of intangible assets, Year Four			1,426,000
Estimated amortization of intangible assets, Year Five			617,000
Estimated amortization of intangible assets, thereafter			178,000
Finite-Lived Intangible Assets, Weighted-Average Useful Life			5.2
Non-amortizable intangible assets related to restrictive covenant arrangements	$ 9,025,000		$ 9,025,000		$ 9,300,000