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Statements Of Changes In Shareholders' Equity (USD $)
9 Months Ended 12 Months Ended
Jul. 31, 2011
Oct. 31, 2010
Statements Of Changes In Shareholders' Equity    
Retained Earnings, Beginning of Period    
Net Income/(Loss) 751,514 (1,719,630)
Distributions Paid (648,924) (15,997)
Adjustment of redeemable capital shares to redemption value (102,590) 1,735,627
Retained Earnings, End of Period    
Cumulative Translation Adjustment, Beginning of Period    
Currency translation adjustment 11,311 (7,589)
Adjustment of redeemable capital shares to redemption value (11,311) 7,589
Cumulative Translation Adjustment, End of Period