5. INVENTORIES (Details) (USD $)	Oct. 31, 2013	Apr. 30, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 2,142,000	$ 2,169,000
Work-in-process	1,891,000	2,170,000
Total inventories	$ 4,033,000	$ 4,339,000

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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-Name Accounting Standards Codification

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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