Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Cash flows from operating activities:
Net loss	$ (35,319)	$ (35,906)	$ (45,974)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation	2,226	2,054	2,577
(Income) loss from equity investment	(46)	645	(58)
Impairment of equity investment	0	3,602	0
Accretion of redeemable preferred stock of subsidiary	0	0	525
Change in fair value of embedded derivatives	1,359	180	137
Depreciation	4,097	5,192	6,431
Amortization of convertible note discount and interest expense	2,480	2,018	2,490
Other non-cash transactions	(382)	(297)	(23)
(Increase) decrease in operating assets:
Accounts and license fee receivables	(12,000)	(14,066)	(4,046)
Inventories	(5,901)	(7,600)	(6,697)
Other assets	6,076	3,032	(15,586)
Increase (decrease) in operating liabilities:
Accounts payable	11,776	(1,790)	3,405
Accrued liabilities	(172)	(6,081)	10,761
Deferred revenue	9,148	(9,642)	37,573
Net cash used in operating activities	(16,658)	(58,659)	(8,485)
Cash flows from investing activities:
Capital expenditures	(6,551)	(4,453)	(3,350)
Cash acquired from acquisition	357	0	0
Convertible loan to affiliate	0	0	(600)
Treasury notes matured	0	12,000	55,000
Treasury notes purchased	0	0	(33,019)
Net cash (used in) provided by investing activities	(6,194)	7,547	18,031
Cash flows from financing activities:
Repayment of debt	(374)	(173)	(306)
Proceeds from debt	45,250	0	4,000
Financing costs for convertible debt securities	(2,472)	0	0
Proceeds received from noncontrolling interest in subsidiary	0	954	0
Decrease (increase) in restricted cash and cash equivalents	632	(2,203)	618
Proceeds from sale of common stock, net of registration fees	5,040	64,003	32,930
Payment of preferred dividends and return of capital	(4,442)	(7,624)	(15,226)
Net cash provided by financing activities	43,634	54,957	22,016
Effects on cash from changes in foreign currency rates	35	51	4
Net increase in cash and cash equivalents	20,817	3,896	31,566
Cash and cash equivalents-beginning of period	46,879	42,983	11,417
Cash and cash equivalents-end of period	$ 67,696	$ 46,879	$ 42,983