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Discontinued Operations (Details) - Etherios, Inc. - Discontinued Operations, Disposed of by Sale - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Oct. 31, 2016	Dec. 31, 2015	Oct. 23, 2017	Dec. 31, 2016	Oct. 23, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration receivable					$ 3,000
Proceeds from Divestiture of Businesses	$ 3,000
Receivable from Divestiture of Business				$ 2,000
Income tax benefit on discontinued operations		$ (523)
Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration receivable			$ 2,000