Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Goodwill And Intangible Assets
Amortization of intangible assets	$ 342,000	$ 387,000	$ 988,000	$ 1,063,000
Estimated amortization of intangible assets, remainder of current year	361,000		361,000
Estimated amortization of intangible assets, Year One	1,438,000		1,438,000
Estimated amortization of intangible assets, Year Two	1,431,000		1,431,000
Estimated amortization of intangible assets, Year Three	1,430,000		1,430,000
Estimated amortization of intangible assets, Year Four	1,430,000		1,430,000
Estimated amortization of intangible assets, Year Five	618,000		618,000
Estimated amortization of intangible assets, thereafter	179,000		179,000
Finite-Lived Intangible Assets, Weighted-Average Useful Life			5 years 0 months 0 days
Non-amortizable intangible assets related to restrictive covenant arrangements	$ 9,175,000		$ 9,175,000		$ 9,300,000