Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Oct. 31, 2011
Current assets:
Cash and cash equivalents	$ 57,514	$ 51,415
Investments - U.S. treasury securities	0	12,016
License fee receivable	10,000	0
Accounts receivable, net of allowance for doubtful accounts of $586 and $555, respectively	25,984	21,950
Inventories, net	47,701	40,101
Other current assets	4,727	7,466
Total current assets	145,926	132,948
Property, plant and equipment, net	23,258	23,925
Investment in and loans to affiliate	6,115	10,466
Other assets, net	16,186	16,291
Total assets	191,485	183,630
Current liabilities:
Current portion of long-term debt	5,161	5,056
Accounts payable	12,254	14,143
Accounts payable due to affiliate	203	104
Accrued liabilities	20,265	26,894
Deferred revenue	45,939	64,114
Preferred stock obligation of subsidiary	1,075	3,854
Total current liabilities	84,897	114,165
Long-term deferred revenue	15,533	7,000
Long-term preferred stock obligation of subsidiary	13,095	12,878
long term debt and other long term liabilities	3,975	4,105
Total liabilities	117,500	138,148
Redeemable preferred stock (liquidation preference of $64,020 at October 31, 2012 and 2011)	59,857	59,857
Shareholders' equity (deficit)
Common stock ($.0001 par value; 275,000,000 and 225,000,000 shares authorized at October 31, 2012 and 2011, respectively; 185,856,123 and 138,400,497 shares issued and outstanding at October 31, 2012 and 2011, respectively)	18	13
Additional paid-in capital	751,256	687,857
Accumulated deficit	(736,831)	(701,336)
Accumulated other comprehensive income	66	15
Treasury stock, Common, at cost (5,679 shares at October 31, 2012 and 2011)	(53)	(53)
Deferred compensation	53	53
Total shareholders' equity (deficit)	14,509	(13,451)
Noncontrolling interest in subsidiaries	(381)	(924)
Total equity (deficit)	14,128	(14,375)
Total liabilities and equity (deficit)	$ 191,485	$ 183,630