CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Operating Revenues	$ 46,715	$ 47,732	$ 127,672	$ 123,611
Operating Expenses:
Operations and Maintenance	22,581	20,312	64,042	59,007
Depreciation	6,376	5,814	18,546	17,107
Other Taxes	4,936	5,031	14,104	13,543
Total Operating Expenses	33,893	31,157	96,692	89,657
Gain on Sale of Subsidiary				5,232
Operating Income	12,822	16,575	30,980	39,186
Other Income (Expense):
Allowance for Funds Used During Construction	496	627	2,162	1,553
Other Income (Expense), net	936	1,412	3,124	4,185
Total Other Income, net	1,432	2,039	5,286	5,738
Interest Charges	3,518	2,355	9,364	6,574
Income before Income Taxes	10,736	16,259	26,902	38,350
Income Taxes	746	1,968	1,143	3,092
Net Income	9,990	14,291	25,759	35,258
Preferred Stock Dividend Requirements	30	30	90	90
Earnings Applicable to Common Stock	$ 9,960	$ 14,261	$ 25,669	$ 35,168
Earnings per share of Common Stock:
Basic (in Dollars per share)	$ 0.56	$ 0.81	$ 1.45	$ 2
Diluted (in Dollars per share)	$ 0.56	$ 0.8	$ 1.44	$ 1.99
Common Shares Outstanding :
Basic (in Shares)	17,758,000	17,628,000	17,708,000	17,583,000
Diluted (in Shares)	17,873,000	17,743,000	17,823,000	17,698,000