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Accrued liabilities (Details) - CAD CAD in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Payables and Accruals [Abstract] |  |
Accrued interest payable | CAD 526 | CAD 1,514
Payroll liabilities | 5,212 | 9,845
Liabilities related to equipment leases | 118 | 786
Current portion of deferred gain on sale leaseback (note 16(a)) | 221 | 93
Dividends payable | 0 | 697
Income and other taxes payable | 691 | 2,062
Accrued liabilities | CAD 6,768 | CAD 14,997

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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 + Details
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