Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,594	$ 2,581
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,841	1,681
Stock-based compensation	4	2
Increase in deferred income taxes	136	667
Other	71	58
Changes in assets and liabilities:
Decrease in accounts receivable and unbilled revenues	403	449
Increase in recoverable income taxes	0	(198)
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(1,238)	(1,744)
Increase in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, regulatory liabilities, and other deferred credits	1,100	1,273
Increase in accrued interest and taxes	527	183
Net cash provided by operating activities	5,438	4,952
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $51 in 2018 and $69 in 2017	(3,026)	(6,413)
Acquisitions of water and wastewater systems	0	(511)
Cash received from surrender of life insurance policies	108	0
Net cash used in investing activities	(2,918)	(6,924)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	423	144
Repayments of customer advances	(112)	(43)
Proceeds of long-term debt issues	5,072	0
Repayments of long-term debt	(6,213)	(11)
Changes in cash overdraft position	(140)	472
Repurchase of common stock	0	(825)
Issuance of common stock	591	522
Dividends paid	(2,141)	(2,056)
Net cash used in financing activities	(2,520)	(1,797)
Net change in cash and cash equivalents	0	(3,769)
Cash and cash equivalents at beginning of period	2	4,209
Cash and cash equivalents at end of period	2	440
Cash paid during the period for:
Interest, net of amounts capitalized	1,159	1,030
Income taxes	$ 0	$ 0
Supplemental disclosure of non-cash investing and financing activities:
Accounts payable includes $1,557 in 2018 and $1,462 in 2017 for the construction of utility plant.