Condensed Consolidated Statement of Cash Flows (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES:
Net income	$ 6,061	$ 5,501
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,586	14,181
Deferred income taxes	3,991	614
Share-based compensation	328	423
Loss on sale of utility property	23	0
Changes in operating assets and liabilities:
Accounts receivable and accrued unbilled utility revenue	(7,770)	(6,908)
Accounts payable, purchased power and other current liabilities	884	691
Accrued groundwater extraction charges and purchased water	2,643	3,138
Accrued taxes	4,811	449
Accrued interest	19	150
Accrued payroll	1,049	1,067
Postretirement benefits	1,710	2,689
Other charges, net	356	162
NET CASH PROVIDED BY OPERATING ACTIVITIES	29,691	22,157
INVESTING ACTIVITIES:
Company funded	(28,289)	(38,507)
Contributions in aid of construction	(1,771)	(1,695)
Additions to real estate investment	(112)	0
Payments for business acquisition and water rights	(1,776)	(2,577)
Cost to retire utility plant, net of salvage	(1,715)	(196)
Proceeds from sale of utility property	43	0
NET CASH USED IN INVESTING ACTIVITIES	(33,620)	(42,975)
FINANCING ACTIVITIES:
Borrowings from line of credit	10,600	30,850
Repayments of line of credit	(7,800)	(24,800)
Long-term borrowings	50,000	22,267
Repayments of long-term borrowings	(736)	(391)
Debt issuance costs	(87)	(783)
Dividends paid	(6,409)	(6,299)
Exercise of stock options and similar instruments	262	290
Tax benefits realized from share options exercised	7	4
Receipts of advances and contributions in aid of construction	2,746	2,769
Refund of advances for construction	(1,028)	(1,010)
NET CASH PROVIDED BY FINANCING ACTIVITIES	47,555	22,897
NET CHANGE IN CASH AND CASH EQUIVALENTS	43,626	2,079
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	1,730	1,416
CASH AND CASH EQUIVALENTS, END OF PERIOD	45,356	3,495
Cash paid (received) during the period for:
Interest	9,642	8,491
Income taxes	(5,358)	1,442
Supplemental disclosure of non-cash activities:
Change in accrued payables	3,466	11,636
Utility Property Installed by Developer	0	117
Loan proceeds held as restricted cash	$ 0	$ 27,733

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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The gains (losses) included in earnings resulting from the sale or disposal of tangible assets. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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The net cash inflow or outflow from investing activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The cash inflow from developers, builders, governmental agencies and municipalities that provide the entity with cash to extend its construction services to their properties.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from the sale of other tangible or intangible assets used to produce goods or deliver services not otherwise defined in the taxonomy.

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The cash outflow for the payments made by the entity, generally on a straight-line basis over periods ranging from five to forty years to developers, builders, government agencies and municipalities for borrowings received in construction.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Discloses the amount of operating expense for the period related to depreciation and amortization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(b))
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

Name:	us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration