CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 31,524	$ 42,429	$ 36,543
Net Cash Provided by Operating Activities:
Depreciation and Amortization	29,442	27,475	26,799
Provision for Deferred Income Taxes	(5,599)	(5,334)	(10,989)
Equity Portion of Allowance for Funds Used During Construction (AFUDC)	(1,458)	(1,387)	(1,505)
Cash Surrender Value of Life Insurance	(300)	401	(136)
Stock Compensation Expense	2,214	1,630	1,338
Gain on Sale of Subsidiary		(5,232)
Changes in Assets and Liabilities:
Accounts Receivable	(2,154)	(707)	(742)
Unbilled Revenues	(638)	(1,386)	(208)
Materials & Supplies	(795)	(819)	(246)
Prepayments	791	256	6
Accounts Payable	2,771	3,722	(9,318)
Accrued Taxes	(1,627)	3,541	(1,517)
Accrued Interest	603	549	(151)
Employee Benefit Plans	(1,340)	(4,266)	(2,645)
Unearned Revenue & Advanced Service Fees	25	35	75
Other Assets and Liabilities	(677)	454	(4,276)
NET CASH PROVIDED BY OPERATING ACTIVITIES	52,782	61,361	33,028
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility Plant Expenditures, Including AFUDC of $975 in 2023, $927 in 2022 and $1,148 in 2021	(90,179)	(91,335)	(79,378)
Proceeds from Sale of Subsidiary		3,122
NET CASH USED IN INVESTING ACTIVITIES	(90,179)	(88,213)	(79,378)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemption of Long-term Debt	(17,463)	(7,423)	(52,691)
Proceeds from Issuance of Long-term Debt	75,812	2,662	86,595
Net Short-term Bank Borrowings	(12,750)	42,500	11,000
Deferred Debt Issuance Expense	(131)	(624)	(994)
Common Stock Issuance Expense	(10)	(32)
Payment of Grantee Withholding Taxes in Exchange for Restricted Stock	(619)
Proceeds from Issuance of Common Stock	12,115	10,335	3,837
Payment of Common Dividends	(22,441)	(20,810)	(19,373)
Payment of Preferred Dividends	(120)	(120)	(120)
Construction Advances and Contributions-Net	1,566	659	11,225
NET CASH PROVIDED BY FINANCING ACTIVITIES	35,959	27,147	39,479
NET CHANGES IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(1,438)	295	(6,871)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	3,828	3,533	10,404
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	2,390	3,828	3,533
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITY:
Utility Plant received as Construction Advances and Contributions	7,259	6,252	4,750
Long-term Debt Deobligation			64
Non-Cash Consideration for Sale of Subsidiary		2,100
Litigation Settlement Receivable	69,872
Litigation Settlement Payable	6,237
Cash Paid During the Year for:
Interest	12,762	9,251	8,546
Interest Capitalized	975	927	1,148
Income Taxes	$ 2,962	$ 3,230	$ 3,335