Intangible Assets (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Amortization Of Intangible Assets	$ 147,000	$ 27,000	$ 286,000	$ 54,000
Future Amortization Expense, Year One	581,000		581,000
Future Amortization Expense, Year Two	535,000		535,000
Future Amortization Expense, Year Three	482,000		482,000
Future Amortization Expense, Year Four	404,000		404,000
Finite-Lived Intangible Assets, Amortization Expense, After Year Five	404,000		404,000
Customer Lists [Member]
Finite-lived Intangible Assets Acquired			3,183,000
Customer Lists [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			10 years
Customer Lists [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			7 years
Noncompete Agreements [Member]
Finite-lived Intangible Assets Acquired			261,000
Finite-Lived Intangible Asset, Useful Life			5 years
Computer Software, Intangible Asset [Member]
Finite-lived Intangible Assets Acquired			$ 234,000
Finite-Lived Intangible Asset, Useful Life			3 years
Other Intangible Assets [Member]
Finite-Lived Intangible Asset, Useful Life			15 years