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Subsequent Events	3 Months Ended
Subsequent Events	Jul. 31, 2011
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On August 12, 2011, the Company received from PGMC an order valued at approximately $1.4 million for lottery products. Shipments of these products are expected to be complete by the third quarter of fiscal 2012. On September 9, 2011, the Company received from PGMC an order valued at approximately $705,000 for lottery products. Shipments of these products are expected to be complete by the fourth quarter of fiscal 2012.