CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Revenues:
Total Operating Revenues	$ 557.1	$ 563.2	$ 473.3
Operating Expenses:
Operation and Maintenance	75.6	73.7	68.7
Depreciation and Amortization	67.4	62.6	59.5
Taxes Other Than Income Taxes	28.5	25.9	24.5
Total Operating Expenses	470.0	482.7	395.5
Operating Income	87.1	80.5	77.8
Interest Expense, Net	28.7	25.5	25.6
Other Expense (Income), Net	0.0	2.4	4.6
Income Before Income Taxes	58.4	52.6	47.6
Provision for Income Taxes	13.2	11.2	11.5
Net Income Applicable to Common Shares	$ 45.2	$ 41.4	$ 36.1
Earnings per Common Share - Basic	$ 2.82	$ 2.59	$ 2.35
Earnings per Common Share - Diluted	$ 2.82	$ 2.59	$ 2.35
Weighted Average Common Shares Outstanding - Basic	16,045	15,991	15,373
Weighted Average Common Shares Outstanding - Diluted	16,053	15,996	15,376
Electric
Operating Revenues:
Total Operating Revenues	$ 306.5	$ 297.9	$ 248.5
Operating Expenses:
Cost of Sales	202.4	199.1	151.1
Gas
Operating Revenues:
Total Operating Revenues	250.6	265.3	224.8
Operating Expenses:
Cost of Sales	$ 96.1	$ 121.4	$ 91.7