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Deferred Revenue (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Deferred Revenue |
| Years ended
| December 31, 2018 $ |  | December 31, 2017 $
Balance, beginning of the year | 32,046 |  |  | 21,086 |
Deferral of revenue | 37,563 |  |  | 29,111 |
Recognition of deferred revenue | (28,548 | ) |  | (18,151 | )
Balance, end of the year | 41,061 |  |  | 32,046 |
| December 31, 2018 $ |  | December 31, 2017 $
Current portion | 39,180 |  |  | 30,694 |
Long term portion | 1,881 |  |  | 1,352 |
| 41,061 |  |  | 32,046 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration