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Inventories
12 Months Ended
Apr. 30, 2012
Inventories [Abstract]  
Inventories:

NOTE D—INVENTORIES

Inventories consist of the following at April 30:

 

                 
    2012     2011  

Finished products

  $ 10,271,704     $ 10,862,889  

Work in process

    2,101,341       2,280,209  

Raw materials

    27,343,433       33,720,490  
   

 

 

   

 

 

 
      39,716,478       46,863,588  

Less obsolescence reserve

    1,878,100       1,841,748  
   

 

 

   

 

 

 
    $ 37,838,378     $ 45,021,840  
   

 

 

   

 

 

 

Changes in the Company’s inventory obsolescence reserve are as follows:

 

                 
    2012     2011  

Beginning balance

  $ 1,841,748     $ 1,897,320  

Provision for obsolescence

    36,352       —    

Write-offs

    —         (55,572 ) 
   

 

 

   

 

 

 
    $ 1,878,100     $ 1,841,748