Note 7 - Income Taxes (Details)	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	25.80%	21.80%	28.60%	28.10%