CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 13,767	$ 13,703
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,958	8,280
Deferred income taxes, net	(2,426)	(1,861)
Stock compensation	142	134
AFUDC, equity portion	(491)	(612)
Changes in assets and liabilities:
Accounts receivable, net of allowance for doubtful accounts	570	(2,264)
Income tax receivable	569	(333)
Unbilled operating revenues	(493)	(389)
Materials and supplies	(131)	(227)
State and federal income taxes payable	1,660	318
Prepaid property taxes	(1,303)	(872)
Prepaid expenses and other	(213)	93
Other deferred assets	(393)	(419)
Regulatory assets	14	275
Regulatory liabilities	(426)	(478)
Accounts payable	(1,076)	(3,814)
Accrued expenses	(598)	1,385
Accrued interest	422	527
Deposits and other	459	852
NET CASH PROVIDED BY OPERATING ACTIVITIES	19,011	14,298
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures (net of AFUDC, equity portion)	(29,703)	(25,961)
Investment in acquisitions	0	(5,741)
Proceeds from sale of assets	88	35
NET CASH USED IN INVESTING ACTIVITIES	(29,615)	(31,667)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings under lines of credit agreements	794	12,578
Increase in overdraft payable	328	3,667
Net advances and contributions in aid of construction	13,946	8,050
Net proceeds from issuance of common stock	1,133	1,125
Issuance of long-term debt	3,753	0
Dividends paid	(7,310)	(6,974)
Debt issuance costs	(19)	(28)
Principal repayments of long-term debt	(1,439)	(1,396)
NET CASH PROVIDED BY FINANCING ACTIVITIES	11,186	17,022
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	582	(347)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	28	596
CASH AND CASH EQUIVALENTS AT END OF PERIOD	610	249
Non-cash Investing and Financing Activity:
Utility plant received as construction advances and contributions	2,799	1,191
Dividends declared but not paid	2,516	2,402
Supplemental Disclosures of Cash Flow Information:
Interest paid	5,263	5,163
Income taxes paid	5,179	6,881
Purchase price allocation of investment in acquisitions:
Utility plant	0	5,118
Other deferred assets/goodwill	0	623
Total investment in acquisitions	$ 0	$ 5,741