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Inventories
6 Months Ended
Oct. 31, 2014
Inventories [Abstract]  
Inventory Disclosure [Text Block]

NOTE 3—INVENTORIES

The following table summarizes the components of inventories:

 
October 31, 2014
April 30, 2014
Raw materials
$
1,162,000

$
955,000

Work in process
538,000

261,000

Finished goods
325,000

239,000

 
$
2,025,000

$
1,455,000