Income Taxes (Details Textual) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012	Oct. 31, 2012
Income Taxes (Textual) [Abstract]
State taxes net of federal benefit, percentage	6.40%				6.50%
Income Tax Reconciliation Decrease in Deferred Tax Assets Valuation Allowance	$ 1,061,000	$ 4,564,000	$ 1,277,000	$ 3,318,000	$ 394,718,000
Recognized cumulative valuation allowances against state deferred tax assets	$ 55,800,000		$ 55,800,000		$ 57,000,000
Number of states	19		19