Note 4 - Inventories (Tables)
 6 Months Ended
Apr. 30, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
April 30,
 
 
October 31,
 
 
 
2016
 
 
2015
 
Finished goods
   $ 5,124,103     $ 6,116,989  
Work in process
     2,430,164       2,918,803  
Raw materials
     8,728,557       8,514,718  
Production supplies
     259,204       265,570  
Total
   $ 16,542,028     $ 17,816,080