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Contingencies (Details) - CAD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of contingent liabilities [line items] |  |
Royalty payment on sales revenue, percent | 0.50% |
Royalty payment maximum | $ 20,000 |
Contingent Royalty Payment, Contribution Rate | 2 |
Estimated accumulated work in kind total | $ 301,000 |
SYNSORB |  |
Disclosure of contingent liabilities [line items] |  |
Milestone payment in connection with Share Purchase Agreement | $ 1,000,000 |
Payment due period | 90 days |
Royalty payment due to founding shareholders, percent | 10.75% | 11.75%
Royalty payment on net sales due to founding shareholders, percent | 2.15% | 2.35%

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- Details
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