Note 6 - Share-Based Compensation (Details) - Summary of Stock Option Activity (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Oct. 31, 2012
Summary of Stock Option Activity [Abstract]
Shares	2,631		3,010
Weighted Average Exercise Price (in Dollars per share)	$ 13.68		$ 14.68
Weighted Average Remaining Contractual Term	6 years 73 days
Aggregate Intrinsic Value (in Dollars)	$ 26,781
Fully vested and expected to vest at July 31, 2013	2,594
Fully vested and expected to vest at July 31, 2013 (in Dollars per share)	$ 13.69
Fully vested and expected to vest at July 31, 2013	6 years 73 days
Fully vested and expected to vest at July 31, 2013 (in Dollars)	26,414
Exercisable at July 31, 2013	1,504
Exercisable at July 31, 2013 (in Dollars per share)	$ 15.00
Exercisable at July 31, 2013	4 years 6 months
Exercisable at July 31, 2013 (in Dollars)	$ 14,567
Granted	532
Granted (in Dollars per share)	$ 13.18
Exercised	(482)	(1,500)
Exercised (in Dollars per share)	$ 9.18
Forfeited	(24)
Forfeited (in Dollars per share)	$ 12.25
Expired	(405)
Expired (in Dollars per share)	$ 25.92