Goodwill And Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Goodwill And Intangible Assets
Amortization of intangible assets	$ 1,472,000	$ 1,184,000	$ 492,000
Unamortized Deferred Financing Costs		434,000
Estimated amortization of intangible assets, 2012	1,306,000
Estimated amortization of intangible assets, 2013	1,303,000
Estimated amortization of intangible assets, 2014	1,297,000
Estimated amortization of intangible assets, 2015	1,297,000
Estimated amortization of intangible assets, 2016	701,000
Estimated amortization of intangible assets, thereafter	221,000
Finite-Lived Intangible Assets, Weighted-Average Useful Life	5
Non-amortizable intangible assets related to restrictive covenant arrangements	$ 9,300,000	$ 6,050,000