Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 5,516	$ 5,333
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,367	3,182
Stock-based compensation	34	0
Increase in deferred income taxes	1,381	607
Other	84	170
Changes in assets and liabilities:
Increase in accounts receivable and unbilled revenues	(154)	(252)
Decrease in recoverable income taxes	282	1,039
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(2,537)	(1,091)
Increase (decrease) in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits	1,173	(736)
Increase in accrued interest and taxes	220	4
Net cash provided by operating activities	9,366	8,256
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $178 in 2017 and $56 in 2016	(13,867)	(5,009)
Acquisitions of water and wastewater systems	(472)	(29)
Cash received from surrender of life insurance policies	0	596
Net cash used in investing activities	(14,339)	(4,442)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	773	892
Repayments of customer advances	(213)	(155)
Proceeds of long-term debt issues	7,911	0
Repayments of long-term debt	(4,426)	(22)
Changes in cash overdraft position	1,083	0
Repurchase of common stock	(1,263)	0
Issuance of common stock	1,018	1,568
Dividends paid	(4,117)	(3,967)
Net cash provided by (used in) financing activities	766	(1,684)
Net change in cash and cash equivalents	(4,207)	2,130
Cash and cash equivalents at beginning of period	4,209	2,879
Cash and cash equivalents at end of period	2	5,009
Cash paid during the period for:
Interest, net of amounts capitalized	2,329	2,491
Income taxes	$ 20	$ 660
Supplemental disclosure of non-cash investing and financing activities:
Accounts payable includes $3,162 in 2017 and $645 in 2016 for the construction of utility plant