Business Acquisition Business Acquisition (Details 3) (New Eezy Gro Inc, USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Jan. 31, 2012
Business Acquisitions (Textual) [Abstract]
Intangible assets		$ 9,600
Finite lived useful life	8 years
Trademarks
Business Acquisitions (Textual) [Abstract]
Intangible assets		1,200
Finite lived useful life	10 years
Customer Lists
Business Acquisitions (Textual) [Abstract]
Intangible assets		5,500
Finite lived useful life	10 years
Technology
Business Acquisitions (Textual) [Abstract]
Intangible assets		2,100
Finite lived useful life	5 years
Non-compete agreement
Business Acquisitions (Textual) [Abstract]
Intangible assets		$ 800
Finite lived useful life	7 years