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Summary of Significant Accounting Policies - Schedule of components of identifiable Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 19,860 | $ 16,074
Less accumulated amortization | (8,190) | (5,508)
Total | 11,670 | 10,566
Trademarks, trade names (non-amortizable) | 400 | 400
Intangible assets - net | 12,070 | 10,966
Software and Software Development Costs |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 19,670 | 15,884
Software and Software Development Costs | Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 3 years |
Software and Software Development Costs | Maximum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Useful Life | 7 years |
Customer Relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 160 | 160
Estimated Useful Life | 7 years |
Non-compete Agreement |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 30 | $ 30
Estimated Useful Life | 1 year |

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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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