CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Operating Revenues	$ 49,323	$ 49,146	$ 93,624	$ 89,670
Operating Expenses:
Operations and Maintenance	23,066	21,825	44,175	42,290
Depreciation	6,703	6,305	13,230	11,701
Other Taxes	5,642	5,701	10,750	10,499
Total Operating Expenses	35,411	33,831	68,155	64,490
Operating Income	13,912	15,315	25,469	25,180
Other Income (Expense):
Allowance for Funds Used During Construction	413	257	786	433
Other Income (Expense), net	1,485	2,399	2,910	7,588
Total Other Income, net	1,898	2,656	3,696	8,021
Interest Charges	3,623	4,041	6,336	7,310
Income before Income Taxes	12,187	13,930	22,829	25,891
Income Taxes	1,409	3,384	2,571	4,663
Net Income	10,778	10,546	20,258	21,228
Preferred Stock Dividend Requirements	19	30	41	60
Earnings Applicable to Common Stock	$ 10,759	$ 10,516	$ 20,217	$ 21,168
Earnings per share of Common Stock:
Basic (in Dollars per share)	$ 0.6	$ 0.59	$ 1.13	$ 1.19
Diluted (in Dollars per share)	$ 0.6	$ 0.59	$ 1.13	$ 1.18
Common Shares Outstanding :
Basic (in Shares)	17,962,000	17,829,000	17,926,000	17,824,000
Diluted (in Shares)	17,993,000	17,944,000	17,957,000	17,939,000