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Income Taxes (Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($)
Internal Revenue Service (IRS) [Member] |
Operating loss carryforwards | $ 6.2
Deferred tax assets, operating loss carryforwards, domestic | $ 2.2
Federal and West Virginia [Member] |
Operating loss carryforwards, expiration date | Dec. 31, 2030
West Virginia [Member] |
Operating loss carryforwards | $ 4.3
Deferred tax assets, operating loss carryforwards, state and local | 0.2
Maryland [Member] |
Operating loss carryforwards | 36.4
Deferred tax assets, operating loss carryforwards, state and local | 1.8
Valuation allowance, deferred tax asset, change in amount | $ 0.1

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