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Inventories
6 Months Ended
Oct. 31, 2013
Inventories [Abstract]  
Inventory Disclosure [Text Block]

NOTE 3—INVENTORIES

The following table summarizes the components of inventories:

 
October 31, 2013
April 30, 2013
Raw materials
$
1,101,000

$
850,000

Work in process
329,000

281,000

Finished goods
362,000

260,000

 
$
1,792,000

$
1,391,000