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Disclosure of share-based payment arrangements (Details) - CAD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement [Line Items] |  |  |
Share-based Payments | $ 1,415,639 | $ 970,796 | $ 542,513
General and Administrative Expenses [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 676,054 | 467,939 | 100,233
Exploration Expenditures [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 739,585 | 502,857 | (34,144)
Shares issued for services [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 358,490 |  |
Shares issued for services [Member] | General and Administrative Expenses [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 85,500 |  |
Shares issued for services [Member] | Exploration Expenditures [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 272,990 |  |
Commitment to issue bonus shares [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 23,825 | 27,462 | 66,089
Commitment to issue bonus shares [Member] | General and Administrative Expenses [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 0 | 27,462 | 100,233
Commitment to issue bonus shares [Member] | Exploration Expenditures [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 23,825 | 0 | (34,144)
RSU's vested [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 27,575 |  |
RSU's vested [Member] | General and Administrative Expenses [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 27,575 |  |
RSU's vested [Member] | Exploration Expenditures [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 0 |  |
Fair value of stock options granted [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 1,005,749 | 943,334 | 476,424
Fair value of stock options granted [Member] | General and Administrative Expenses [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | 562,979 | 440,477 | 369,883
Fair value of stock options granted [Member] | Exploration Expenditures [Member] |  |  |
Statement [Line Items] |  |  |
Share-based Payments | $ 442,770 | $ 502,857 | $ 106,541

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- Definition The amount of cost related to the issuance of shares. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_106_d&doctype=Standard -URIDate 2017-03-09 + Details
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