CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,363	$ 2,474
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred compensation	1,708	1,412
Depreciation and amortization	6,622	5,977
Amortization of deferred debt issuance costs and discounts	103	73
Loss on equity investment	0	79
Other (gains) and losses	551	(1)
Provision for doubtful accounts receivable	100	34
Deferred income tax expense	295	660
Changes in assets and liabilities
Accounts receivable	(615)	(326)
Other current assets	(749)	(341)
Accounts payable and other current liabilities	1,095	245
Other noncurrent assets	(255)	56
Other noncurrent liabilities	1,479	835
Net cash provided by operating activities	11,697	11,177
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(7,490)	(7,785)
Other cash flows from investing activities	(9)	3
Net cash used in investing activities	(7,499)	(7,782)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid	(4,896)	(4,620)
Advances in aid of construction	1,575	743
Proceeds from stock option exercise	0	413
Principal payments under capital lease	(77)	(40)
Refunds of advances for construction	(959)	(903)
Loan borrowings	0	31
Loan repayments	24	39
Proceeds from sale of stock	11,739	0
Debt issuance costs paid	(53)	(40)
Payments of offering costs for sale of stock	(221)	0
Net cash (used) provided by financing activities	7,084	(4,455)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	11,282	(1,060)
Cash and cash equivalents	18,062	11,091
Restricted Cash, Cash Equivalents, Noncurrent	2,315	1,046
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 20,377	$ 12,137