Commitments and Contingent Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of purchased water cost

Purchased water costs are shown below:

	(In Thousands)
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2017		2016		2017		2016
Treated	$	795	$	754	$	1,574	$	1,555
Untreated		573		570		1,232		1,236
Total Costs	$	1,368	$	1,324	$	2,806	$	2,791