Note 3 - Intangible Assets And Goodwill (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012	Oct. 31, 2004	Oct. 31, 2012
Amortization of Intangible Assets	$ 2,100,000	$ 2,300,000	$ 4,200,000	$ 4,600,000
Indefinite-Lived Trade Names	24,400,000		24,400,000			24,500,000
Business Acquisition, Contingent Consideration, at Fair Value					7,600,000
Contingent Consideration Payment Term					10 years
Business Acquisition, Contingent Consideration, Potential Cash Payment					12,000,000
Contingent Installments Paid	11,900,000		11,900,000
ProTec Games Inc. [Member]
Goodwill, Acquired During Period			2,700,000
Business Acquisition, Cost of Acquired Entity, Cash Paid	2,100,000		2,100,000
Bet Technology Acquisition [Member]
Goodwill, Other Changes			$ 500,000