Intangible Assets - Additional Information (Detail) $ in Thousands |
12 Months Ended |
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Dec. 31, 2017
USD ($)
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| Finite-Lived Intangible Assets [Line Items] | |
| Definite-lived assets amortization period | 3 years |
| Amortization expense of definite-lived assets | $ 8 |
| Atigeo Corporation [Member] | |
| Finite-Lived Intangible Assets [Line Items] | |
| Total consideration related to acquisition | 3,004 |
| Atigeo Corporation [Member] | Domain Name [Member] | |
| Finite-Lived Intangible Assets [Line Items] | |
| Total consideration related to acquisition | $ 30 |
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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