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Note 10 - Employees Benefit (Tables)
12 Months Ended
Oct. 31, 2015
Notes Tables  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Nonvested shares
 
Shares
 
 
Weighted-average grant date fair value
 
Balance at October 31, 2014
    775,060     $ 3.91  
Granted
    338,122       4.08  
Vested
    (266,993 )     3.92  
Forfeited
    (15,372 )     3.94  
Balance at October 31, 2015
    830,817     $ 3.98