Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Oct. 31, 2013
Current assets:
Cash and cash equivalents	$ 83,710	$ 67,696
Restricted cash and cash equivalents - short-term	5,523	5,053
Accounts receivable, net of allowance for doubtful accounts of $132 and $14 at October 31, 2014 and 2013, respectively	64,375	49,116
Inventories	55,895	56,185
Other current assets	7,528	11,279
Total current assets	217,031	189,329
Restricted cash and cash equivalents - long-term	19,600	4,950
Property, plant and equipment, net	26,609	24,225
Goodwill	4,075	4,075
Intangible assets	9,592	9,592
Other assets, net	3,729	5,465
Total assets	280,636	237,636
Current liabilities:
Current portion of long-term debt	1,439	6,931
Accounts payable	22,969	24,535
Accrued liabilities	12,066	21,912
Deferred revenue	37,626	51,857
Preferred stock obligation of subsidiary	961	1,028
Total current liabilities	75,061	106,263
Long-term deferred revenue	20,705	18,763
Long-term preferred stock obligation of subsidiary	13,197	13,270
Long-term debt and other liabilities	13,367	52,675
Total liabilities	122,330	190,971
Redeemable preferred stock (liquidation preference of $64,020 at October 31, 2014 and 2013)	59,857	59,857
Shareholders' equity (deficit)
Common stock ($.0001 par value; 400,000,000 and 275,000,000 shares authorized at October 31, 2014 and 2013, respectively; 287,160,003 and 196,310.402 shares issued and outstanding at October 31, 2014 and 2013, respectively)	29	20
Additional paid-in capital	909,431	758,656
Accumulated deficit	(809,314)	(771,189)
Accumulated other comprehensive income (loss)	(159)	101
Treasury stock, Common, at cost (45,550 and 5,679 shares at October 31, 2014 and 2013, respectively)	95	53
Deferred compensation	(95)	(53)
Total shareholders' equity (deficit)	99,987	(12,412)
Noncontrolling interest in subsidiaries	(1,538)	(780)
Total equity (deficit)	98,449	(13,192)
Total liabilities and equity (deficit)	$ 280,636	$ 237,636