Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Operating Revenues
Regulated Energy	$ 72,770	$ 69,703	$ 252,667	$ 238,353
Unregulated Energy and other	67,509	57,233	263,632	198,827
Total Operating Revenues	140,279	126,936	516,299	437,180
Operating Expenses
Regulated Energy cost of sales	21,501	22,794	89,741	87,206
Unregulated Energy and other cost of sales	55,660	44,066	204,880	145,325
Operations	32,821	29,274	101,804	91,778
Maintenance	3,208	2,737	10,419	9,370
Gain From A Settlement	0	0	(130)	(130)
Depreciation and amortization	10,633	9,362	30,176	27,267
Other taxes	4,420	4,071	13,719	12,572
Total Operating Expenses	128,243	112,304	450,609	373,388
Operating Income	12,036	14,632	65,690	63,792
Other expense, net	(11)	(154)	(204)	(1,855)
Interest charges	4,430	3,321	11,976	9,133
Income Before Income Taxes	7,595	11,157	53,510	52,804
Income taxes	2,057	4,324	14,731	20,781
Net Income	$ 5,538	$ 6,833	$ 38,779	$ 32,023
Weighted Average Common Shares Outstanding:
Basic (shares)	16,378,545	16,344,442	16,366,608	16,334,210
Diluted (shares)	16,428,439	16,389,635	16,416,255	16,378,633
Earnings Per Share of Common Stock:
Basic (in dollars per share)	$ 0.34	$ 0.42	$ 2.37	$ 1.96
Diluted (in dollars per share)	0.34	0.42	2.36	1.96
Cash Dividends Declared Per Share of Common Stock (in dollars per share)	$ 0.370	$ 0.325	$ 1.065	$ 0.955