Capital shares (Details Textuals) (USD $)	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Capital shares (Textuals) [Abstract]
Convertible preference shares authorized	10,000	10,000
Preference shares outstanding	0	0	0
Stock split description	2-for-1
Percentage stock dividend paid	100.00%
Common Stock No Par Value
Common Shares issued	98,023	98,023
Common Shares Outstanding	65,601,000	67,871,000