Stockholders' Equity - Schedule of Changes in Non-Vested Shares Under Option, Excluding Performance Based Options (Detail) (USD $)	12 Months Ended
	Oct. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Non-vested, beginning of year, Shares	4,422,172
Granted, Shares	1,045,000
Vested, Shares	(2,428,844)
Canceled, Shares	(253,502)
Non-vested, end of year, Shares	2,784,826
Non-vested, beginning of year, Wtd. Avg. Grant Date Fair Value	$ 1.92
Granted, Wtd. Avg. Grant Date Fair Value	$ 4.81
Vested, Wtd. Avg. Grant Date Fair Value	$ 1.97
Canceled, Wtd. Avg. Grant Date Fair Value	$ 2.00
Non-vested, end of year, Wtd. Avg. Grant Date Fair Value	$ 2.95