Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Apr. 30, 2020	Oct. 31, 2019
Current assets:
Cash and cash equivalents, unrestricted		$ 29,087	$ 9,434
Restricted cash and cash equivalents - short-term	[1]	8,082	3,473
Accounts receivable, net		6,117	3,292
Unbilled receivables		7,475	7,684
Inventories		54,945	54,515
Other current assets		5,672	5,921
Total current assets		111,378	84,319
Restricted cash and cash equivalents - long-term		36,250	26,871
Inventories - long-term	[2]	9,018	2,179
Project assets		153,874	144,115
Property, plant and equipment		38,530	41,134
Operating lease right-of-use assets, net		10,051
Goodwill		4,075	4,075
Intangible assets		20,615	21,264
Other assets		10,850	9,489
Total assets		394,641	333,446
Current liabilities:
Current portion of long-term debt		13,834	21,916
Current portion of operating lease liabilities		770
Accounts payable		13,567	16,943
Accrued liabilities		10,905	11,452
Deferred revenue		12,629	11,471
Preferred stock obligation of subsidiary		899	950
Total current liabilities		52,604	62,732
Long-term deferred revenue		29,907	28,705
Long-term preferred stock obligation of subsidiary		16,420	16,275
Long-term operating lease liabilities		9,716
Long-term debt and other liabilities		176,821	90,140
Total liabilities		285,468	197,852
Stockholders’ equity:
Common stock ($0.0001 par value); 225,000,000 shares authorized as of April 30, 2020 and October 31, 2019; 211,052,401 and 193,608,684 shares issued and outstanding as of April 30, 2020 and October 31, 2019, respectively		21	19
Additional paid-in capital		1,180,042	1,151,454
Accumulated deficit		(1,130,009)	(1,075,089)
Accumulated other comprehensive loss		(738)	(647)
Treasury stock, Common, at cost (34,194 and 42,496 shares as of April 30, 2020 and October 31, 2019, respectively)		(437)	(466)
Deferred compensation		437	466
Total stockholders’ equity		49,316	75,737
Total liabilities and stockholders' equity		394,641	333,446
Series B Preferred Stock [Member]
Current liabilities:
Redeemable preferred stock		$ 59,857	$ 59,857

[1] Short-term restricted cash and cash equivalents are amounts expected to be released and categorized as unrestricted cash within twelve months of the balance sheet date.

[2] Long-term inventory includes modules that are contractually required to be segregated for use as replacement modules for specific project assets. Given that these project assets are long-term, the Company classifies the inventory as long-term regardless of the expected timing of such module replacements.