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Other information Other information - Supplemental cash flow information (Details) - CAD CAD in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Cash paid during the year for: |  |
Interest | CAD 5,895 | CAD 9,187
Income taxes | 0 | 0
Cash received during the year for: |  |
Interest | 194 | 208
Income taxes | CAD 0 | CAD 0

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- Definition Cash Received During the Year [Abstract] + References No definition available. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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