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Major Customers And Concentration of Credit Risk	12 Months Ended
Apr. 30, 2012
Major Customers And Concentration of Credit Risk [Abstract]
MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK	NOTE J—MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK Financial instruments that potentially subject the Company to concentration of credit risk consist principally of uncollateralized accounts receivable. For the fiscal year ended April 30, 2012, two customers accounted for 21.0% and 14.0% of net sales of the Company, respectively, and 50.7% and 7.4% of accounts receivable as of April 30, 2012, respectively. For the year ended April 30, 2011, two customers accounted for 24.0% and 16.0% of net sales of the Company, and 42.3% and 6.9% of accounts receivable at April 30, 2011.

Major Customers And Concentration of Credit Risk

12 Months Ended

Apr. 30, 2012

Major Customers And Concentration of Credit Risk [Abstract]

MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK

NOTE J—MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of uncollateralized accounts receivable. For the fiscal year ended April 30, 2012, two customers accounted for 21.0% and 14.0% of net sales of the Company, respectively, and 50.7% and 7.4% of accounts receivable as of April 30, 2012, respectively. For the year ended April 30, 2011, two customers accounted for 24.0% and 16.0% of net sales of the Company, and 42.3% and 6.9% of accounts receivable at April 30, 2011.