CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 42,429	$ 36,543	$ 38,425
Net Cash Provided by Operating Activities:
Depreciation and Amortization	27,475	26,799	20,838
Provision for Deferred Income Taxes	(5,334)	(10,989)	(13,490)
Equity Portion of Allowance for Funds Used During Construction (AFUDC)	(1,387)	(1,505)	(2,503)
Cash Surrender Value of Life Insurance	401	(136)	(391)
Stock Compensation Expense	1,630	1,338	1,096
Gain on Sale of Subsidiary	(5,232)
Changes in Assets and Liabilities:
Accounts Receivable	(707)	(742)	(2,661)
Unbilled Revenues	(1,386)	(208)	118
Materials & Supplies	(819)	(246)	333
Prepayments	256	6	(519)
Accounts Payable	3,722	(9,318)	7,137
Accrued Taxes	3,541	(1,517)	2,503
Accrued Interest	549	(151)	106
Employee Benefit Plans	(4,266)	(2,645)	(1,377)
Unearned Revenue & Advanced Service Fees	35	75	44
Other Assets and Liabilities	454	(4,276)	3,696
NET CASH PROVIDED BY OPERATING ACTIVITIES	61,361	33,028	53,355
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility Plant Expenditures, Including AFUDC of $927 in 2022, $1,148 in 2021 and $1,513 in 2020	(91,335)	(79,378)	(105,619)
Proceeds from Sale of Subsidiary	3,122
NET CASH USED IN INVESTING ACTIVITIES	(88,213)	(79,378)	(105,619)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemption of Long-term Debt	(7,423)	(52,691)	(7,472)
Proceeds from Issuance of Long-term Debt	2,662	86,595	50,316
Net Short-term Bank Borrowings	42,500	11,000	(18,000)
Deferred Debt Issuance Expense	(624)	(994)	(148)
Common Stock Issuance Expense	(32)		(37)
Proceeds from Issuance of Common Stock	10,335	3,837	1,230
Payment of Common Dividends	(20,810)	(19,373)	(18,178)
Payment of Preferred Dividends	(120)	(120)	(120)
Construction Advances and Contributions-Net	659	11,225	8,578
NET CASH PROVIDED BY FINANCING ACTIVITIES	27,147	39,479	16,169
NET CHANGES IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	295	(6,871)	(36,095)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	3,533	10,404	46,499
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	3,828	3,533	10,404
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITY:
Utility Plant received as Construction Advances and Contributions	6,252	4,750	5,080
Long-term Debt Deobligation		64	258
Non-Cash Consideration for Sale of Subsidiary	2,100
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION:
Interest	9,251	8,546	7,644
Interest Capitalized	927	1,148	1,513
Income Taxes	$ 3,230	$ 3,335	$ 2,509