Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

Accounts payable and accrued liabilities - (Details)

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Accounts payable and accrued liabilities - (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Accounts payable and accrued liabilities [Abstract]    
Trade payables $ 2,951 $ 3,773
Other accrued liabilities 1,849 2,149
Employee accruals 2,271 2,037
Trade and other current payables $ 7,071 $ 7,959