Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Note 5 - Financial Instruments - Currency Risk (Details)

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Note 5 - Financial Instruments - Currency Risk (Details) - Currency risk [member] - CAD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Statement Line Items [Line Items]    
Balance, end of period $ 580 $ 699
Cash and cash equivalents [member]    
Statement Line Items [Line Items]    
Financial assets 303 83
Invesmtents [member]    
Statement Line Items [Line Items]    
Financial assets 706 1,000
Accounts payable and accrued liabilities [member]    
Statement Line Items [Line Items]    
Accounts payable and accrued liabilities $ (429) $ (384)