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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Accounting Policies [Abstract] |  |
Cost of revenues | $ 1,607 | $ 1,457
Operating expense | 6,904 | 5,634
General and administrative expense | $ 1,147 | $ 721

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- Definition Operating Expense, Depreciation And Amortization + References No definition available. + Details
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- Definition Selling, General And Administrative Expense, Depreciation And Amortization + References No definition available. + Details
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- References No definition available. + Details
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- Definition Depreciation of property, plant and equipment directly related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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