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Condensed Consolidated Interim Statements of Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Total
Balance (in shares) at Nov. 30, 2015 317,910        
Balance at Nov. 30, 2015 $ 1,938,262 $ 80,774 $ (1,672,055) $ (17,685) $ 329,296
Net loss     (33,846)   (33,846)
Other comprehensive income (loss)       (1,175) (1,175)
Share-based compensation and related share issuances (in shares) 2,106        
Share-based compensation and related share issuances $ 4,189 1,799     5,988
Balance (in shares) at Nov. 30, 2016 320,016        
Balance at Nov. 30, 2016 $ 1,942,451 82,573 (1,705,901) (18,860) 300,263
Net loss     (18,605)   (18,605)
Other comprehensive income (loss)       (1,424) (1,424)
Share-based compensation and related share issuances (in shares) 1,649        
Share-based compensation and related share issuances $ 4,941 836     5,777
Balance (in shares) at May. 31, 2017 321,665        
Balance at May. 31, 2017 $ 1,947,392 $ 83,409 $ (1,724,506) $ (20,284) $ 286,011