CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 33,888	$ 32,452	$ 22,809
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization	17,232	15,780	14,846
Provision for Deferred Income Taxes and ITC	(11,719)	(8,724)	7,944
Equity Portion of AFUDC	(1,997)	(919)	(481)
Cash Surrender Value of Life Insurance	(252)	27	(209)
Stock Compensation Expense	637	1,084	840
Changes in Assets and Liabilities:
Accounts Receivable	(146)	(977)	(656)
Unbilled Revenues	110	(294)	(409)
Materials & Supplies	(34)	1,293	(24)
Prepayments	277	(236)	(384)
Accounts Payable	3,981	5,396	1,586
Accrued Taxes	(6,595)	2,812	(967)
Accrued Interest	742	196	9
Employee Benefit Plans	(1,112)	(2,114)	(1,920)
Unearned Revenue & Advanced Service Fees	175	85	28
Other Assets and Liabilities	866	2,589	(169)
NET CASH PROVIDED BY OPERATING ACTIVITIES	36,053	45,864	42,843
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility Plant Expenditures, Including AFUDC of $1,149 in 2019, $443 in 2018 and $221 in 2017	(89,125)	(72,094)	(50,301)
NET CASH USED IN INVESTING ACTIVITIES	(89,125)	(72,094)	(50,301)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemption of Long-term Debt	(7,343)	(7,024)	(6,159)
Proceeds from Issuance of Long-term Debt	78,967	22,076	11,523
Proceeds from Premium Issuance of Long-term Debt	7,083
Net Short-term Bank Borrowings	(28,500)	20,500	16,000
Deferred Debt Issuance Expense	(769)	(880)	(230)
Common Stock Issuance Expense	(357)
Proceeds from Issuance of Common Stock	56,784	1,150	1,234
Payment of Common Dividends	(16,165)	(14,930)	(14,002)
Payment of Preferred Dividends	(132)	(144)	(144)
Construction Advances and Contributions-Net	4,342	4,746	1,315
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	93,910	25,494	9,537
NET CHANGES IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	40,838	(736)	2,079
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	5,661	6,397	4,318
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	46,499	5,661	6,397
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITY:
Utility Plant received as Construction Advances and Contributions	7,770	3,835	3,778
Long-term Debt Deobligation	130
Cash Paid During the Year for:
Interest	6,938	6,113	5,616
Interest Capitalized	1,149	443	221
Income Taxes	$ 10,339	$ 4,689	$ 2,754