Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jul. 31, 2011	Oct. 31, 2010
Current assets:
Cash and cash equivalents	$ 31,480	$ 20,467
Investments - U.S. treasury securities	18,040	25,019
Accounts receivable, net	16,692	18,066
Inventories	38,732	33,404
Other current assets	7,047	5,253
Total current assets	111,991	102,209
Property, plant and equipment, net	23,320	26,679
Investments - U.S. treasury securities	0	9,071
Investment in and loans to affiliate	10,287	9,837
Other assets, net	11,287	2,733
Total assets	156,885	150,529
Current liabilities:
Current portion of long-term debt and other liabilities	3,638	976
Accounts payable	15,493	10,267
Accounts payable due to affiliate	429	575
Accrued liabilities	25,380	16,721
Deferred revenue	37,607	25,499
Preferred stock obligation of subsidiary	6,954	0
Total current liabilities	89,501	54,038
Long-term deferred revenue	7,250	8,042
Long-term preferred stock obligation of subsidiary	13,528	0
Long-term debt and other liabilities	4,140	4,056
Total liabilities	114,419	66,136
Redeemable preferred stock of subsidiary	0	16,849
Redeemable preferred stock (liquidation preference of $64,020 at July 31, 2011 and October 31, 2010)	59,857	59,857
Shareholders' (deficit) equity
Common stock ($.0001 par value); 225,000,000 shares authorized; 127,116,539 and 112,965,725 shares issued and outstanding at July 31, 2011 and October 31, 2010, respectively	12	11
Additional paid-in capital	677,713	663,951
Accumulated deficit	(694,271)	(655,623)
Accumulated other comprehensive income	15	11
Treasury stock, Common, at cost (5,679 shares at July 31, 2011 and October 31, 2010)	(53)	(53)
Deferred compensation	53	53
Total shareholders' (deficit) equity	(16,531)	8,350
Noncontrolling interest in subsidiaries	(860)	(663)
Total (deficit) equity	(17,391)	7,687
Total liabilities and (deficit) equity	$ 156,885	$ 150,529