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Recent Accounting Pronouncements Recent Accounting Pronouncements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated Impact of ASU 2017-07		$ 18,000
Scenario, Forecast [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated Impact of ASU 2017-07	$ 49,000

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Estimated Impact of ASU 2017-07

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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