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Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 6,005 | $ 6,005
Accumulated Amortization | 5,362 | 5,130
Impairment loss on technology platform |  |
Net book value of amortizable intangible assets | 643 | 875
Technology platform [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2,865 | 2,865
Accumulated Amortization | 2,667 | 2,568
Customer relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2,460 | 2,460
Accumulated Amortization | 2,207 | 2,093
Trademarks and trade names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 680 | 680
Accumulated Amortization | $ 488 | $ 469

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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