Federal Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income Tax Contingency [Line Items]
Effective income tax rate	25.90%	23.70%
Federal income tax rate	34.00%	34.00%
Material unrecognized tax benefits or accrued interest and penalties	$ 0
Operating Loss Carryforwards	$ 6.7us-gaap_OperatingLossCarryforwards	$ 6.0us-gaap_OperatingLossCarryforwards
Minimum [Member]
Income Tax Contingency [Line Items]
Open Tax Year	2011
Maximum [Member]
Income Tax Contingency [Line Items]
Open Tax Year	2013

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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-Publisher SEC

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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