Stockholders' Equity (Tables)

12 Months Ended

Oct. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Changes in Shares Under Options Excluding Performance Based Options

Changes in shares underlying stock options, excluding performance-based stock options, were as follows:

	Year Ended October 31,
	2015				2014				2013
	Shares		Weighted Average Price		Shares		Weighted Average Price		Shares		Weighted Average Price
Outstanding, beginning of year	6,817,609		$	4.52	8,829,618		$	4.83	12,325,499		$	4.49
Granted	9,990,000		0.88		275,000		8.05		1,045,000		6.68
Exercised	—		—		(1,058,416	)	4.27		(2,985,792	)	2.94
Canceled/Forfeited	(1,833,958	)	5.66		(1,228,593	)	7.67		(1,555,089	)	7.02
Outstanding, end of year	14,973,651		$	1.95	6,817,609		$	4.52	8,829,618		$	4.83
Exercisable, end of year	5,061,984		$	3.84	5,696,273		$	4.24	6,044,792		$	4.72

Schedule of Outstanding Stock Options, Excluding Performance Based Options

Outstanding stock options, excluding performance-based stock options, at October 31, 2015 consist of the following:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Shares	Weighted Average Remaining Life (Years)	Weighted Average Exercise Price		Shares	Weighted Average Exercise Price
$0.63 - $2.34	11,616,667	8.7	$	1.05	1,936,667	$	2.03
$2.35 - $4.60	1,302,500	4.3	3.09		1,302,500	3.09
$4.61 - $6.64	1,408,484	4.7	5.37		1,326,817	5.29
$6.65 - $8.70	400,000	6.9	7.42		250,000	7.77
$8.71 - $10.75	195,000	2.2	9.00		195,000	9.00
$10.76 - $16.36	51,000	0.9	14.52		51,000	14.52
Total	14,973,651	7.8	$	1.95	5,061,984	$	3.84

Schedule of Changes in Non-Vested Shares Under Option, Excluding Performance Based Options

Changes in non-vested shares underlying stock options, excluding performance-based stock options, for the year ended October 31, 2015 were as follows:

	Shares		Weighted Average Grant Date Fair Value
Non-vested, beginning of year	1,121,336		$	4.18
Granted	9,990,000		0.64
Vested	(1,016,335	)	2.95
Canceled	(183,334	)	5.20
Non-vested, end of year	9,911,667		$	0.72

Schedule of Activity Related to Performance Based Options and Performance Based Restricted Stock Units

Activity related to performance-based options and performance-based restricted stock units for the fiscal year ended October 31, 2015 is as follows:

	Performance Options		Performance Restricted Stock Units
Non-vested, October 31, 2014	640,000		10,218,508
Granted	—		1,844,000
Exercised	—		—
Canceled	(124,000	)	(2,296,080	)
Non-vested, October 31, 2015	516,000		9,766,428

Schedule of Changes in Restricted Stock Units

	Year Ended October 31,
	2015		2014		2013
Outstanding restricted stock, beginning of year	175,000		195,000		801,667
Granted	105,000		105,000		105,000
Vested	(80,000	)	(95,000	)	(685,000	)
Forfeited	(25,000	)	(30,000	)	(26,667	)
Outstanding restricted stock, end of year	175,000		175,000		195,000

There were no non-performance based restricted stock units outstanding in the fiscal years ended October 31, 2014 and 2013. Changes in non-performance based restricted stock units for the fiscal year ended October 31, 2015 were as follows:

	Year Ended October 31, 2015
Outstanding non-performance based restricted stock units, beginning of year	—
Granted	675,676
Vested	(281,532	)
Forfeited	(394,144	)
Outstanding non-performance based restricted stock units, end of year	—