Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 6,905	$ 6,961
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,855	3,667
Increase in deferred income taxes	1,689	2,865
Other	162	314
Changes in assets and liabilities:
Increase in accounts receivable and unbilled revenues	(469)	(20)
(Increase) decrease in recoverable income taxes	197	(268)
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(760)	(955)
Increase (decrease) in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits	(198)	577
Increase in accrued interest and taxes	813	154
Net cash provided by operating activities	12,194	13,295
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $40 in 2012 and $45 in 2011	(8,785)	(6,794)
Acquisitions of water and wastewater systems	(463)	0
Decrease in notes receivable	24	33
Net cash used in investing activities	(9,224)	(6,761)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	565	90
Repayments of customer advances	(234)	(234)
Repayments of long-term debt	(32)	(95)
Issuance of common stock	1,634	1,232
Dividends paid	(5,184)	(4,993)
Net cash used in financing activities	(3,251)	(4,000)
Net change in cash and cash equivalents	(281)	2,534
Cash and cash equivalents at beginning of period	4,006	1,327
Cash and cash equivalents at end of period	3,725	3,861
Cash paid during the period for:
Interest, net of amounts capitalized	3,416	3,745
Income taxes	$ 1,661	$ 838