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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Income Statement [Abstract]    
Operating Revenues $ 40,524 $ 38,156
Operating Expenses:    
Operations and Maintenance 20,465 20,257
Depreciation 5,396 5,986
Other Taxes 4,798 4,423
Total Operating Expenses 30,659 30,666
Operating Income 9,865 7,490
Other Income:    
Allowance for Funds Used During Construction 176 813
Other Income, net 5,189 898
Total Other Income, net 5,365 1,711
Interest Charges 3,269 2,595
Income before Income Taxes 11,961 6,606
Income Taxes 1,279 738
Net Income 10,682 5,868
Preferred Stock Dividend Requirements 30 30
Earnings Applicable to Common Stock $ 10,652 $ 5,838
Earnings per share of Common Stock:    
Basic (in Dollars per share) $ 0.6 $ 0.33
Diluted (in Dollars per share) $ 0.59 $ 0.33
Average Number of Common Shares Outstanding:    
Basic (in Shares) 17,819,000 17,652,000
Diluted (in Shares) 17,934,000 17,767,000