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Disclosure of currency risk (Details) | Dec. 31, 2017 CAD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 CAD ($) | Dec. 31, 2015 CAD ($) | Dec. 31, 2014 CAD ($)
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Statement [Line Items] |  |  |  |  |
Cash and cash equivalents | $ 3,533,611 |  | $ 3,199,686 | $ 5,634,601 | $ 6,450,308
Restricted cash | 771,434 |  | 359,172 |  |
Receivables | 3,376,411 |  | 3,430,006 |  |
Accounts payable and accrued liabilities | 749,865 |  | 577,265 |  |
Advances from joint venture partners | 808,905 |  | $ 341,361 |  |
Currency Risk [Member] |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Cash and cash equivalents |  | $ 2,286,117 |  |  |
Restricted cash |  | 615,636 |  |  |
Receivables |  | 2,442,545 |  |  |
Accounts payable and accrued liabilities |  | (446,604) |  |  |
Advances from joint venture partners |  | (644,497) |  |  |
Net exposure | $ 5,338,027 | $ 4,253,198 |  |  |

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- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_45&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B13_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_i&doctype=Standard -URIDate 2017-03-09 + Details
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