Note 5 - Shareholders' Equity (Detail) (USD $)	9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 21,100,000
Proceeds from Issuance of Common Stock	16,238,000	2,156,000
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	3,100,000
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	$ 700,000