Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES:
Net income	$ 906	$ 1,317
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,881	9,200
Deferred income taxes	113	100
Share-based compensation	244	347
Gain on sale of real estate investment	0	(1,063)
Changes in operating assets and liabilities:
Accounts receivable and accrued unbilled utility revenue	3,282	938
Accounts payable, purchased power and other current liabilities	(1,018)	94
Accrued groundwater extraction charges and purchased water	(653)	1,442
Tax receivable and accrued taxes	1,574	1,281
Other current asset and liabilities related to balancing and memorandum accounts	(95)	(813)
Postretirement benefits	1,507	2,490
Regulatory asset related to balancing and memorandum accounts	411	(1,008)
Other changes, net	(191)	106
NET CASH PROVIDED BY OPERATING ACTIVITIES	15,961	14,431
INVESTING ACTIVITIES:
Company-funded	(25,158)	(17,380)
Contributions in aid of construction	(1,625)	(2,698)
Additions to real estate investments	0	(1,194)
Payments for business/asset acquisition and water rights	(807)	(1,087)
Cost to retire utility plant, net of salvage	(229)	(878)
Proceeds from sale of real estate investment	0	8,831
NET CASH USED IN INVESTING ACTIVITIES	(27,819)	(14,406)
FINANCING ACTIVITIES:
Borrowings from line of credit	16,800	12,300
Repayments of line of credit	(2,200)	(5,500)
Repayments of long-term borrowings	(138)	(4,975)
Dividends paid	(3,788)	(3,412)
Exercise of stock options and similar instruments	476	345
Tax benefits realized from share options exercised	59	30
Receipts of advances and contributions in aid of construction	1,897	1,240
Refunds of advances for construction	(429)	(430)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	12,677	(402)
NET CHANGE IN CASH AND CASH EQUIVALENTS	819	(377)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	2,299	2,522
CASH AND CASH EQUIVALENTS, END OF PERIOD	3,118	2,145
Cash paid (received) during the period for:
Interest	5,066	5,073
Income taxes	(10)	13
Supplemental disclosure of non-cash activities:
(Decrease) increase in accrued payables for construction costs capitalized	(1,254)	1,963
Utility property installed by developers	1,277	(111)
Increase in real estate investments due to accrued tenant improvements	0	921
Accrued intangible assets and other charges related to water supply project in Texas	$ 0	$ 2,621