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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Accounting Policies [Abstract] |  |  |  |
Cost of revenues | $ 1,639 | $ 1,485 | $ 3,246 | $ 2,942
Operating expense | 6,501 | 5,544 | 13,405 | 11,178
General and administrative expense | $ 901 | $ 650 | $ 2,048 | $ 1,371

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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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