Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,016	$ 6,905
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,301	3,855
Increase in deferred income taxes	2,049	1,689
Other	172	162
Changes in assets and liabilities:
(Increase) decrease in accounts receivable and unbilled revenues	260	(469)
Decrease in recoverable income taxes	0	197
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(983)	(760)
Increase (decrease) in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits	201	(198)
Increase in accrued interest and taxes	651	813
Net cash provided by operating activities	13,667	12,194
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $32 in 2013 and $40 in 2012	(6,595)	(8,785)
Acquisitions of water and wastewater systems	(28)	(463)
Decrease in compensating balance	500	0
Decrease in notes receivable	23	24
Net cash used in investing activities	(6,100)	(9,224)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	567	565
Repayments of customer advances	(262)	(234)
Repayments of long-term debt	(31)	(32)
Repurchase of common stock	(1,772)	0
Issuance of common stock	2,075	1,634
Dividends paid	(5,361)	(5,184)
Net cash used in financing activities	(4,784)	(3,251)
Net change in cash and cash equivalents	2,783	(281)
Cash and cash equivalents at beginning of period	4,012	4,006
Cash and cash equivalents at end of period	6,795	3,725
Cash paid during the period for:
Interest, net of amounts capitalized	3,746	3,416
Income taxes	$ 1,322	$ 1,661