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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Cash flows from operating activities: |  |  |
Net loss | $ (77,568,000) | $ (47,334,000) | $ (53,903,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Share-based compensation | 2,804,000 | 3,238,000 | 4,585,000
(Gain) loss from change in fair value of embedded derivatives | (176,000) | 60,000 | 91,000
Depreciation | 12,353,000 | 8,648,000 | 8,518,000
Non-cash interest expense on preferred stock and debt obligations | 6,097,000 | 5,957,000 | 6,256,000
Deferred income taxes | 0 | (3,035,000) | 0
Impairment of property, plant and equipment and project assets | 20,360,000 | 0 | 0
Unrealized loss on derivative contract | 624,000 | 0 | 0
Unrealized foreign exchange (gains) losses | (29,000) | (223,000) | 581,000
Other non-cash transactions | 716,000 | 760,000 | 165,000
Decrease (increase) in operating assets: |  |  |
Accounts receivable | 4,842,000 | 24,169,000 | (35,388,000)
Unbilled receivables | (4,488,000) | 24,562,000 | (15,888,000)
Inventories | (6,427,000) | 31,714,000 | (7,972,000)
Other assets | 2,120,000 | (2,264,000) | (714,000)
Increase (Decrease) in operating liabilities: |  |  |
Accounts payable | (173,000) | (19,846,000) | 25,020,000
Accrued liabilities | 2,377,000 | (11,345,000) | (2,290,000)
Deferred revenue | 5,996,000 | 1,261,000 | (906,000)
Net cash (used in) provided by operating activities | (30,572,000) | 16,322,000 | (71,845,000)
Cash flows from investing activities: |  |  |
Capital expenditures | (2,151,000) | (10,028,000) | (12,351,000)
Project asset expenditures | (31,675,000) | (41,232,000) | (19,726,000)
Asset acquisition | (35,474,000) | 0 | 633,000
Net cash used in investing activities | (69,300,000) | (51,260,000) | (31,444,000)
Cash flows from financing activities: |  |  |
Repayment of debt | (48,395,000) | (16,616,000) | (8,571,000)
Proceeds from debt | 69,596,000 | 13,091,000 | 17,877,000
Payments of deferred finance costs | (3,302,000) | (352,000) | (206,000)
Proceeds from sale of common stock and warrant exercises, net | 43,573,000 | 10,455,000 | 39,396,000
Payment of preferred dividends and return of capital | (1,840,000) | (4,178,000) | (4,156,000)
Common stock issued for stock plans and related expenses | 23,000 | 0 | 86,000
Net cash provided by financing activities | 59,655,000 | 27,717,000 | 72,292,000
Effects on cash from changes in foreign currency rates | (244,000) | 12,000 | 129,000
Net decrease increase in cash, cash equivalents, and restricted cash | (40,461,000) | (7,209,000) | (30,868,000)
Cash, cash equivalents, and restricted cash-beginning of year | 80,239,000 | 87,448,000 | 118,316,000
Cash, cash equivalents, and restricted cash-end of year | 39,778,000 | 80,239,000 | 87,448,000
Series C Preferred Stock [Member] |  |  |
Cash flows from financing activities: |  |  |
Net proceeds from issuance of preferred shares | 0 | 0 | 27,866,000
Series D Preferred Stock [Member] |  |  |
Cash flows from financing activities: |  |  |
Net proceeds from issuance of preferred shares | $ 0 | $ 25,317,000 | $ 0

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