CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 30,118	$ 25,818
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization	15,595	12,858
Provision for Deferred Income Taxes	(10,991)	(8,379)
Equity Portion of Allowance for Funds Used During Construction (AFUDC)	(1,789)	(1,330)
Cash Surrender Value of Life Insurance	(166)	(187)
Stock Compensation Expense	820	409
Changes in Assets and Liabilities:
Accounts Receivable	(3,659)	(1,645)
Unbilled Revenues	(1,640)	(2,124)
Materials and Supplies	683	252
Prepayments	(1,002)	(933)
Accounts Payable	1,554	853
Accrued Taxes	3,007	(2,098)
Accrued Interest	(94)	(490)
Employee Benefit Plans	1,234	(640)
Unearned Revenue & Advanced Service Fees	100	12
Other Assets and Liabilities	3,520	972
NET CASH PROVIDED BY OPERATING ACTIVITIES	37,290	23,348
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility Plant Expenditures, Including AFUDC of $1,082 in 2020 and $700 in 2019	(70,785)	(61,220)
NET CASH USED IN INVESTING ACTIVITIES	(70,785)	(61,220)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemption of Long-term Debt	(6,391)	(6,315)
Proceeds from Issuance of Long-term Debt	10,319	82,446
Net Short-term Bank Borrowings	16,500	10,000
Deferred Debt Issuance Expense	(41)	(754)
Common Stock Issuance Expense	(37)	(22)
Proceeds from Issuance of Common Stock	921	12,449
Payment of Common Dividends	(13,418)	(11,893)
Payment of Preferred Dividends	(90)	(102)
Construction Advances and Contributions-Net	7,420	3,480
NET CASH PROVIDED BY FINANCING ACTIVITIES	15,183	89,289
NET CHANGES IN CASH AND CASH EQUIVALENTS	(18,312)	51,417
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	46,499	5,661
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	28,187	57,078
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITY:
Utility Plant received as Construction Advances and Contributions	3,747	5,375
Long-term Debt Deobligation		130
Cash Paid During the Year for:
Interest	5,834	5,929
Interest Capitalized	1,082	700
Income Taxes	$ 1,783	$ 6,752