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Supplemental Cash Flow Information - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Debt Conversion [Line Items] |  |  |
Cash interest paid | $ 4,091 | $ 4,486 | $ 2,715
Income taxes paid | 48 | 2 | 2
Noncash financing and investing activity: |  |  |
Common stock issued for Employee Stock Purchase Plan in settlement of prior year accrued employee contributions |  |  | 50
Noncash reclass between inventory and project assets |  | 10,793 | 7,282
Assumption of debt in conjunction with asset acquisition |  |  | 2,289
Acquisition of project assets | 16,704 |  | 2,386
Accrued purchase of fixed assets, cash paid in subsequent period | 71 | 1,579 | 2,490
Accrued purchase of project assets, cash paid in subsequent period | 222 | 3,115 | $ 2,380
Series C Preferred Stock [Member] |  |  |
Noncash financing and investing activity: |  |  |
Preferred stock share conversions | 15,491 | $ 20,220 |
Preferred share modification | (6,047) |  |
Series D Preferred Stock [Member] |  |  |
Noncash financing and investing activity: |  |  |
Preferred stock share conversions | $ 31,183 |  |

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