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Condensed Consolidated Interim Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2017
May 31, 2016
May 31, 2017
May 31, 2016
Operating activities:        
Net loss $ (8,462) $ (9,138) $ (18,605) $ (19,115)
Adjustments:        
Equity losses of affiliates 2,772 2,822 5,004 5,019
Share-based compensation 2,049 1,869 5,974 6,577
Interest on promissory note 1,307 1,153 2,520 2,244
Foreign exchange (gain) loss (194) 797 (33) 272
Other (38) (221) (65) (4)
Withholding tax on share-based compensation (196) (4,275)
Changes in operating assets and liabilities:        
Other assets 492 306 465 940
Accounts payable and accrued liabilities 537 264 (1,018) (1,542)
Net cash used in operating activities (1,537) (2,148) (5,954) (9,884)
Investing activities:        
Proceeds from term deposits 55,000 45,000 95,000 85,000
Purchases of term deposits (46,900) (45,000) (91,900) (80,000)
Funding of affiliates (3,113) (3,130) (5,753) (5,193)
Other (28)
Net cash used in investing activities 4,987 (3,130) (2,681) (193)
Effect of exchange rate changes on cash (66) 83 (16) 89
Decrease in cash and cash equivalents 3,384 (5,195) (8,651) (9,988)
Cash and cash equivalents at beginning of period 18,239 36,938 30,274 41,731
Cash and cash equivalents at end of period $ 21,623 $ 31,743 $ 21,623 $ 31,743