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Components of inventories
9 Months Ended
Jul. 31, 2011
Components of inventories
Note 5 - Components of inventories
 
Inventories, consisting of materials, labor and manufacturing overhead, are stated at the lower of cost or market. Cost has been determined using the weighted average cost method.
 
   
July 31,
   
October 31,
 
   
2011
   
2010
 
             
Raw materials and supplies
  $ 2,168,492     $ 1,405,443  
Work in process
    21,551       15,425  
Finished goods
    4,195,085       3,348,944  
Inventory reserve
    (90,000 )     (161,969 )
                 
Totals
  $ 6,295,128     $ 4,607,843  

Purchases of connector products from four major vendors in the nine month period ended July 31, 2011 represented 29%, 16%, 12% and 10% compared to three major vendors who represented 22%, 15%, and 13% of total inventory purchases for the same period in 2010. The Company has arrangements with these vendors to purchase product based on purchase orders periodically issued by the Company.