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Inventories
3 Months Ended
Jul. 31, 2014
Inventories [Abstract]  
Inventory Disclosure [Text Block]

NOTE 3—INVENTORIES

The following table summarizes the components of inventories:

 
July 31, 2014
April 30, 2014
Raw materials
$
1,092,000

$
955,000

Work in process
390,000

261,000

Finished goods
282,000

239,000

 
$
1,764,000

$
1,455,000