Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014
Current assets:
Cash and cash equivalents, unrestricted	$ 82,985	$ 83,710
Restricted cash and cash equivalents - short term	6,968	5,523
Accounts receivable, net	43,521	64,375
Inventories	71,877	55,895
Project assets	9,945	784
Other current assets	10,536	7,528
Total current assets	225,832	217,815
Restricted cash and cash equivalents - long-term	20,300	19,600
Property, plant and equipment, net	27,313	25,825
Goodwill	4,075	4,075
Intangible Assets	9,592	9,592
Other assets, net	3,547	3,729
Total assets	290,659	280,636
Current liabilities:
Current portion of long-term debt	4,497	1,439
Accounts payable	20,236	22,969
Accrued liabilities	11,761	12,066
Deferred revenue	45,668	37,626
Preferred stock obligation of subsidiary	894	961
Total current liabilities	83,056	75,061
Long-term deferred revenue	21,676	20,705
Long-term preferred stock obligation of subsidiary	12,697	13,197
Long-term debt and other liabilities	13,177	13,367
Total liabilities	130,606	122,330
Redeemable preferred stock (liquidation preference of $64,020 at April 30, 2015 and October 31, 2014)	59,857	59,857
Shareholders' equity
Common stock ($.0001 par value); 400,000,000 as of April 30, 2015 and October 31, 2014; 300,990,595 and 287,160,003 shares issued and outstanding at April 30, 2015 and October 31, 2014, respectively.	30	29
Additional paid-in capital	924,360	909,431
Accumulated deficit	(823,274)	(809,314)
Accumulated other comprehensive loss	(499)	(159)
Treasury stock, Common, at cost (41,357 and 45,550 shares as of April 30, 2015 and October 31, 2014, respectively)	(56)	(95)
Deferred Compensation Equity	56	95
Total shareholders' equity	100,617	99,987
Noncontrolling interest in subsidiaries	(421)	(1,538)
Total equity	100,196	98,449
Total liabilities and equity	$ 290,659	$ 280,636