Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Apr. 30, 2017	Oct. 31, 2016
Current assets:
Cash and cash equivalents, unrestricted	$ 46,454	$ 84,187
Restricted cash and cash equivalents - short-term	4,591	9,437
Accounts receivable, net	24,836	24,593
Inventories	75,585	73,806
Other current assets	6,588	10,181
Total current assets	158,054	202,204
Restricted cash and cash equivalents - long-term	33,088	24,692
Project assets	56,288	47,111
Property, plant and equipment, net	40,895	36,640
Goodwill	4,075	4,075
Intangible assets	9,592	9,592
Other assets	17,551	16,415
Total assets	319,543	340,729
Current liabilities:
Current portion of long-term debt	14,564	5,010
Accounts payable	10,215	18,475
Accrued liabilities	15,003	20,900
Deferred revenue	8,388	6,811
Preferred stock obligation of subsidiary	787	802
Total current liabilities	48,957	51,998
Long-term deferred revenue	19,944	20,974
Long-term preferred stock obligation of subsidiary	12,889	12,649
Long-term debt and other liabilities	77,394	80,855
Total liabilities	159,184	166,476
Redeemable preferred stock (liquidation preference of $64,020 as of April 30, 2017 and October 31, 2016)	59,857	59,857
Shareholders’ equity:
Common stock ($0.0001 par value); 125,000,000 and 75,000,000 shares authorized as of April 30, 2017 and October 31, 2016, respectively; 47,575,606 and 35,174,424 shares issued and outstanding as of April 30, 2017 and October 31, 2016, respectively.	5	4
Additional paid-in capital	1,017,632	1,004,566
Accumulated deficit	(916,553)	(889,630)
Accumulated other comprehensive loss	(582)	(544)
Treasury stock, Common, at cost (88,861 and 21,527 shares as of April 30, 2017 and October 31, 2016, respectively)	(280)	(179)
Deferred compensation	280	179
Total shareholders’ equity	100,502	114,396
Total liabilities and shareholders' equity	$ 319,543	$ 340,729