CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Revenues:
Total Operating Revenues	$ 536.0	$ 494.8	$ 557.1
Operating Expenses:
Operation and Maintenance	92.5	77.6	75.6
Depreciation and Amortization	88.7	76.1	67.4
Taxes Other Than Income Taxes	31.3	29.9	28.5
Total Operating Expenses	434.8	404.2	470.0
Operating Income	101.2	90.6	87.1
Interest Expense, Net	36.7	29.3	28.7
Other Expense (Income), Net	(1.0)	0.2	0.0
Income Before Income Taxes	65.5	61.1	58.4
Provision for Income Taxes	15.3	14.0	13.2
Net Income Applicable to Common Shares	$ 50.2	$ 47.1	$ 45.2
Earnings per Common Share - Basic	$ 2.97	$ 2.93	$ 2.82
Earnings per Common Share - Diluted	$ 2.97	$ 2.93	$ 2.82
Weighted Average Common Shares Outstanding - Basic	16,786,081	16,098,267	16,045,300
Weighted Average Common Shares Outstanding - Diluted	16,787,753	16,109,070	16,052,747
Electric
Operating Revenues:
Total Operating Revenues	$ 236.4	$ 248.3	$ 306.5
Operating Expenses:
Cost of Electric Sales	121.8	141.0	202.4
Gas
Operating Revenues:
Total Operating Revenues	299.6	246.5	250.6
Operating Expenses:
Cost of Electric Sales	$ 100.5	$ 79.6	$ 96.1