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Income Taxes (Schedule of Income Tax Expense Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Income Tax at Statutory Rate	$ 10,703	$ 9,786	$ 8,638
Tax Effect of:
Utility Plant Related	(920)	(572)	(527)
State Income Taxes - Net	745	711	546
Employee Benefits	7	(6)	(46)
Other	16	18	10
Income Taxes	$ 10,551	$ 9,937	$ 8,621

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible employee benefit costs.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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