Rate and Regulatory Matters (Details Narrative) (USD $) In Thousands, unless otherwise specified	1 Months Ended	0 Months Ended	1 Months Ended		0 Months Ended		1 Months Ended		1 Months Ended
	Jun. 30, 2014 Tidewater [Member] Distribution System Investment Charge [Member]	Nov. 08, 2013 New Jersey Board of Public Utilities [Member]	Jun. 30, 2014 New Jersey Board of Public Utilities [Member]	May 31, 2014 New Jersey Board of Public Utilities [Member]	Jul. 02, 2014 Delware Public Service Commission [Member] Tidewater [Member]	Nov. 25, 2013 Delware Public Service Commission [Member] Tidewater [Member]	Apr. 30, 2014 Delware Public Service Commission [Member] Tidewater [Member]	Jun. 30, 2014 Delware Public Service Commission [Member] Tidewater [Member]	Apr. 30, 2014 Delware Public Service Commission [Member] TESI [Member]
Regulatory Liabilities [Line Items]
Description of application request seeking increase in base rates		Filed an application with the New Jersey Board of Public Utilities (NJBPU) seeking permission to increase its base water rates.	In June 2014, Middlesex's application with the New Jersey Board of Public Utilities (NJBPU) seeking permission to increase base water rates was partially approved.	Middlesex filed a petition with the NJBPU seeking approval of foundational capital project information (Foundational Filing) that would allow for the implementation of a Distribution System Improvement Charge (DSIC).	In connection with the rate increase application, Tidewater implemented a DEPSC approved 6.5% interim rate increase, subject to refund.	Tidewater filed an application with the Delaware Public Service Commission (DEPSC) seeking permission to increase its base water rates.	The DEPSC approved Tidewater's agreement with the United States Department of Defense for the privatization of the water system of Dover Air Force Base (DAFB) in Dover, Delaware.		The DEPSC approved an April 2014 request by TESI to relinquish its Certificate of Public Necessity and Convenience for a real estate parcel in Sussex County, Delaware.
Approved increase in annual operating revenues			$ 4,200
Originally filed increase in annual operating revenue	100	10,600		3,600		3,900
Approved increase in annual operating revenue (percentage)					6.50%
Amended filed increase in annual operating revenue		8,100			2,500
Return on equity			9.75%
Base rate amount	0		208,600
Deferred revenue from interim rate increase								500
Projected annual revenue							600
Reimbursements received for preliminary survey and investigation costs									1,900
Gain on relinguishment of CPNC									$ 100