Income Taxes (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Apr. 30, 2011	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Income tax disclosures [Line Items]
Deferred tax liability, reclass from other to deferred income		$ 1,200,000
deferred tax asset, reclass from accrued expenses to inventory valuation differences		1,100,000
Number of states		19
State taxes estimated rate, percentage		6.50%	6.50%	5.00%
Recognized cumulative valuation allowances against state deferred tax assets		(55,707,000)	(57,044,000)
Proceeds from Federal Tax Refunds	154,300,000
Valuation allowance - reversed		$ (4,569,000)	$ (394,718,000)	$ (25,689,000)
State Net Operating Loss Carryforwards [Member] | Minimum [Member]
Income tax disclosures [Line Items]
net operating loss, carryback expiration periods		5 years
State Net Operating Loss Carryforwards [Member] | Maximum [Member]
Income tax disclosures [Line Items]
net operating loss, carryback expiration periods		20 years