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Consolidated Balance Sheets - USD ($)
$ in Thousands
Oct. 31, 2018
Oct. 31, 2017
Current assets:    
Cash and cash equivalents $ 39,291 $ 49,294
Restricted cash and cash equivalents - short-term 5,806 4,628
Accounts receivable, net of allowance for doubtful accounts of $160 and $79 as of October 31, 2018 and 2017, respectively 23,039 68,521
Inventories 53,575 74,496
Other current assets 8,592 6,571
Total current assets 130,303 203,510
Restricted cash and cash equivalents - long-term 35,142 33,526
Project assets 99,600 73,001
Property, plant and equipment, net 48,204 43,565
Goodwill 4,075 4,075
Intangible assets 9,592 9,592
Other assets 13,505 16,517
Total assets 340,421 383,786
Current liabilities:    
Current portion of long-term debt 17,596 28,281
Accounts payable 22,594 42,616
Accrued liabilities 7,632 18,381
Deferred revenue 11,347 7,964
Preferred stock obligation of subsidiary 952 836
Total current liabilities 60,121 98,078
Long-term deferred revenue 16,793 18,915
Long-term preferred stock obligation of subsidiary 14,965 14,221
Long-term debt and other liabilities 71,619 63,759
Total liabilities 163,498 194,973
Stockholders’ equity    
Common stock ($0.0001 par value; 225,000,000 and 125,000,000 shares authorized as of October 31, 2018 and 2017, respectively; 95,672,237 and 69,492,816 shares issued and outstanding as of October 31, 2018 and 2017, respectively) 10 7
Additional paid-in capital 1,073,454 1,045,197
Accumulated deficit (990,867) (943,533)
Accumulated other comprehensive loss (403) (415)
Treasury stock, Common, at cost (156,501 and 88,861 shares as of October 31, 2018 and 2017, respectively) (363) (280)
Deferred compensation 363 280
Total stockholders’ equity 82,194 101,256
Total liabilities and stockholders’ equity 340,421 383,786
Series B Preferred Stock [Member]    
Current liabilities:    
Redeemable preferred stock 59,857 59,857
Series C Preferred Stock [Member]    
Current liabilities:    
Redeemable preferred stock 7,480 $ 27,700
Series D Preferred Stock [Member]    
Current liabilities:    
Redeemable preferred stock $ 27,392