Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 4,597	$ 4,183
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,446	2,285
Increase in deferred income taxes	1,851	340
Other	255	65
Changes in assets and liabilities:
Increase in accounts receivable and unbilled revenues	(171)	(626)
Increase in recoverable income taxes	(661)	0
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(821)	(249)
Increase in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits	1,103	480
Decrease in accrued interest and taxes	(3)	(64)
Net cash provided by operating activities	8,596	6,414
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $28 in 2011 and $12 in 2010	(4,124)	(3,617)
Decrease in notes receivable	20	27
Net cash used in investing activities	(4,104)	(3,590)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	33	223
Repayments of customer advances	(137)	(277)
Proceeds of long-term debt issues	0	12,633
Repayments of long-term debt	(85)	(14,249)
Borrowings under short-term line of credit agreements	0	1,000
Changes in cash overdraft position	0	(61)
Issuance of common stock	841	1,126
Dividends paid	(3,327)	(3,219)
Net cash used in financing activities	(2,675)	(2,824)
Net change in cash and cash equivalents	1,817	0
Cash and cash equivalents at beginning of period	1,327	0
Cash and cash equivalents at end of period	3,144	0
Cash paid during the period for:
Interest, net of amounts capitalized	2,605	2,398
Income taxes	$ 838	$ 2,246