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

Note 8 - Financial Instruments - Classes of Financial Instruments (Details)

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Note 8 - Financial Instruments - Classes of Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Cash and Cash Equivalents, Consisting of High Interest Savings Account, Measured at Amortized Cost [Member]    
Financial assets:    
Financial assets $ 10,631 $ 7,940
Investments, Consisting of Guaranteed Investment Certificates, Measured at Amortized Cost [Member]    
Financial assets:    
Financial assets 798
Accounts Payable and Accrued Liabilities, Measured at Amortized Cost [Member]    
Financial liabilities:    
Financial liabilities $ 1,765 $ 1,318