Acquisitions (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Customer	Mar. 31, 2015 USD ($)
Acquisitions [Abstract]
Purchase price	$ 5	$ 0
Water Assets of Newberry Farms Mobile Home Park [Member]
Acquisitions [Abstract]
Date of agreement	Oct. 19, 2015
Effective date of acquisition	Oct. 22, 2015
Number of customers acquired | Customer	160
Purchase price	$ 129
Change in purchase price	13
Acquisition adjustment	$ 0
Water Assets of Margaretta Mobile Home Park [Member]
Acquisitions [Abstract]
Date of agreement	Nov. 02, 2015
Effective date of acquisition	Nov. 03, 2015
Number of customers acquired | Customer	65
Purchase price	$ 102
Change in purchase price	(31)
Acquisition adjustment	$ 56
Water Assets of Crestview Mobile Home Park [Member]
Acquisitions [Abstract]
Date of agreement	Mar. 10, 2016
Effective date of acquisition	Mar. 15, 2016
Number of customers acquired | Customer	120
Purchase price	$ 23