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Inventories
12 Months Ended
Apr. 30, 2014
Inventories [Abstract]  
Inventory Disclosure [Text Block]
NOTE 2—INVENTORIES

The following table summarizes the components of inventories, as of April 30 of each year:
 
2014
2013
Raw materials
$
955,000

$
850,000

Work in process
261,000

281,000

Finished goods
239,000

260,000

 
$
1,455,000

$
1,391,000