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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015
Supplemental Cash Flow Information [Abstract] |  |  |
Cash interest paid | $ 2,715 | $ 1,941 | $ 677
Income taxes paid | 2 | 80 | 8
Noncash financing and investing activity: |  |  |
Common stock issued for Employee Stock Purchase Plan in settlement of prior year accrued employee contributions | 50 | 105 | 169
Noncash reclass from inventory to project assets | 7,282 |  |
Assumption of debt in conjunction with asset acquisition | 2,289 |  |
Acquisition of project assets | 2,386 |  |
Accrued sale of common stock, cash received in a subsequent period |  | 357 | $ 494
Accrued purchase of fixed assets, cash paid in subsequent period | 2,490 | 3,952 |
Accrued purchase of project assets, cash paid in subsequent period | $ 2,380 | $ 1,797 |

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585 + Details
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- Definition Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585 + Details
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