Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Apr. 30, 2018
Oct. 31, 2017
Current assets:    
Cash and cash equivalents, unrestricted $ 66,973 $ 49,294
Restricted cash and cash equivalents - short-term 5,249 4,628
Accounts receivable, net 46,189 68,521
Inventories 55,255 74,496
Other current assets 7,938 6,571
Total current assets 181,604 203,510
Restricted cash and cash equivalents - long-term 32,965 33,526
Project assets 79,595 73,001
Property, plant and equipment, net 44,667 43,565
Goodwill 4,075 4,075
Intangible asset 9,592 9,592
Other assets 15,121 16,517
Total assets 367,619 383,786
Current liabilities:    
Current portion of long-term debt 10,094 28,281
Accounts payable 42,813 42,616
Accrued liabilities 14,731 18,381
Deferred revenue 9,424 7,964
Preferred stock obligation of subsidiary 837 836
Total current liabilities 77,899 98,078
Long-term deferred revenue 17,841 18,915
Long-term preferred stock obligation of subsidiary 14,825 14,221
Long-term debt and other liabilities 82,804 63,759
Total liabilities 193,369 194,973
Stockholders’ equity:    
Common stock ($0.0001 par value); 225,000,000 and 125,000,000 shares authorized as of April 30, 2018 and October 31, 2017, respectively; 84,898,762 and 69,492,816 shares issued and outstanding as of April 30, 2018 and October 31, 2017, respectively 8 7
Additional paid-in capital 1,063,501 1,045,197
Accumulated deficit (960,890) (943,533)
Accumulated other comprehensive loss (328) (415)
Treasury stock, Common, at cost (182,962 and 88,861 shares as of April 30, 2018 and October 31, 2017, respectively) (447) (280)
Deferred compensation 447 280
Total stockholders’ equity 102,291 101,256
Total liabilities and stockholders' equity 367,619 383,786
Series B Preferred Stock [Member]    
Current liabilities:    
Redeemable preferred stock 59,857 59,857
Series C Preferred Stock [Member]    
Current liabilities:    
Redeemable preferred stock $ 12,102 $ 27,700