Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Income Taxes [Line Items]
Federal statutory rate	35.00%
Deferred tax assets, Job Tax Credit	$ 18,098,000	$ 11,275,000
Investment tax credit provided by Investing in Business Property Credit	7.00%
Recorded gross valuation allowance	18,098,000	11,275,000
North Carolina
Income Taxes [Line Items]
Deferred tax assets, Job Tax Credit	13,676,000
Georgia
Income Taxes [Line Items]
Deferred tax assets, Job Tax Credit	$ 4,422,000
Minimum
Income Taxes [Line Items]
Deferred tax assets, North Carolina and Georgia Investing in Business Property Credit and North Carolina Jobs Credits, expiration year	2017
Maximum
Income Taxes [Line Items]
Deferred tax assets, North Carolina and Georgia Investing in Business Property Credit and North Carolina Jobs Credits, expiration year	2023