Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Utility plant:
Land	$ 10,844	$ 10,418
Depreciable plant and equipment	1,301,143	1,254,586
Construction in progress	36,817	30,846
Intangible assets	19,149	18,341
Property, Plant and Equipment, Gross	1,367,953	1,314,191
Less accumulated depreciation and amortization	433,841	415,453
Public Utilities, Property, Plant and Equipment, Net	934,112	898,738
Real estate investments	73,794	78,477
Less accumulated depreciation and amortization	10,807	10,658
Total	62,987	67,819
CURRENT ASSETS:
Cash and cash equivalents	6,023	2,299
Accounts receivable:
Customers, net of allowances for uncollectible accounts	17,157	14,496
Income tax	0	1,661
Other	850	476
Accrued unbilled utility revenue	19,646	17,556
Materials and supplies	1,113	1,045
Prepaid expenses	2,218	2,119
Assets, Current	47,007	39,652
OTHER ASSETS:
Investment in California Water Service Group	6,271	8,885
Unamortized debt issuance, broker and reacquisition costs	5,438	5,176
Regulatory assets, net	84,831	83,543
Other	6,376	6,173
Assets, Noncurrent	102,916	103,777
Assets	1,147,022	1,109,986
Shareholders' equity:
Common stock, $0.521 par value; authorized 36,000,000 shares; issued and outstanding 20,218,534 shares on June 30, 2014 and 20,169,211 on December 31, 2013	10,531	10,505
Additional paid-in capital	64,178	63,017
Retained earnings	244,377	244,266
Accumulated other comprehensive income	2,454	3,387
Total shareholders' equity	321,540	321,175
Long-term debt, less current portion	334,684	334,997
Capitalization, Long-term Debt and Equity	656,224	656,172
CURRENT LIABILITIES:
Line of credit	52,000	22,400
Current portion of long-term debt	569	554
Accrued groundwater extraction charges and purchased water	10,606	7,116
Purchased power	1,292	665
Accounts payable	12,589	12,587
Accrued interest	5,368	5,369
Accrued property taxes and other non-income taxes	774	1,618
Accrued payroll	3,105	3,198
Income tax payable	170	0
Other current liabilities	5,584	5,688
Liabilities, Current	92,057	59,195
DEFERRED INCOME TAXES	140,071	140,736
UNAMORTIZED INVESTMENT TAX CREDITS	1,345	1,375
ADVANCES FOR CONSTRUCTION	71,008	70,043
CONTRIBUTIONS IN AID OF CONSTRUCTION	134,909	132,260
DEFERRED REVENUE	1,312	1,213
POSTRETIREMENT BENEFIT PLANS	44,663	43,496
OTHER NONCURRENT LIABILITIES	5,433	5,496
COMMITMENTS AND CONTINGENCIES	0	0
Liabilities and Equity	$ 1,147,022	$ 1,109,986