Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Asbury Pointe Water and Sewer Company [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Jul. 31, 2012
Business Acquisition, Effective Date of Acquisition	Aug. 01, 2012
Number of Customers Acquired	240
Purchase price	$ 359
Acquisition adjustment	367
York Starview, LP [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Aug. 16, 2012
Business Acquisition, Effective Date of Acquisition	Aug. 16, 2012
Number of Customers Acquired	240
Purchase price	131
Acquisition adjustment	36
Section A Water Corporation [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Oct. 12, 2012
Business Acquisition, Effective Date of Acquisition	Oct. 15, 2012
Number of Customers Acquired	100
Purchase price	171
Acquisition adjustment	$ 35