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Income Taxes (Tables) | 12 Months Ended
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Oct. 31, 2017
Income Tax Disclosure [Abstract] |
Schedule of Components of Loss Before Income Taxes | The components of loss before income taxes for the years ended October 31, 2017, 2016, and 2015 were as follows (in thousands):
|  | 2017 |  |  | 2016 |  |  | 2015 |
U.S. |  | $ | (49,723 | ) |  | $ | (46,708 | ) |  | $ | (26,459 | )
Foreign |  |  | (4,136 | ) |  |  | (3,981 | ) |  |  | (2,951 | )
Loss before income taxes |  | $ | (53,859 | ) |  | $ | (50,689 | ) |  | $ | (29,410 | )
Schedule of Reconciliation of Federal Statutory Income Tax Rate To Effective Income Tax Rate | The reconciliation of the federal statutory income tax rate to our effective income tax rate for the years ended October 31, 2017, 2016 and 2015 was as follows:
|  | 2017 |  |  | 2016 |  |  | 2015 |
Statutory federal income tax rate |  |  | (34.0 | )% |  |  | (34.0 | )% |  |  | (34.0 | )%
Increase (decrease) in income taxes resulting from: |  |  |  |  |  |  |  |  |  |  |  |
State taxes, net of Federal benefits |  |  | (1.3 | )% |  |  | (0.2 | )% |  |  | (0.1 | )%
Foreign withholding tax |  |  | 0.1 | % |  |  | 1.1 | % |  |  | 0.9 | %
Net operating loss adjustment and true-ups |  |  | (4.6 | )% |  |  | 3.3 | % |  |  | 4.7 | %
Nondeductible expenditures |  |  | 1.9 | % |  |  | 0.9 | % |  |  | 0.1 | %
Change in state tax rate |  |  | (0.8 | )% |  |  | (0.3 | )% |  |  | 1.6 | %
Other, net |  |  | 0.6 | % |  |  | 0.2 | % |  |  | 0.4 | %
Valuation allowance |  |  | 38.2 | % |  |  | 30.1 | % |  |  | 27.3 | %
Effective income tax rate |  |  | 0.1 | % |  |  | 1.1 | % |  |  | 0.9 | %
Schedule of Deferred Tax Assets and Liabilities | Our deferred tax assets and liabilities consisted of the following at October 31, 2017 and 2016 (in thousands):
|  | 2017 |  |  | 2016 |
Deferred tax assets: |  |  |  |  |  |  |  |
Compensation and benefit accruals |  | $ | 11,158 |  |  | $ | 9,625 |
Bad debt and other allowances |  |  | 605 |  |  |  | 1,276 |
Capital loss and tax credit carry-forwards |  |  | 13,398 |  |  |  | 12,772 |
Net operating losses (domestic and foreign) |  |  | 282,022 |  |  |  | 265,799 |
Deferred license revenue |  |  | 7,850 |  |  |  | 8,616 |
Inventory valuation allowances |  |  | 111 |  |  |  | 278 |
Accumulated depreciation |  |  | 5,095 |  |  |  | 4,653 |
Grant revenue |  |  | 1,522 |  |  |  | 1,327 |
Gross deferred tax assets: |  |  | 321,761 |  |  |  | 304,346 |
Valuation allowance |  |  | (321,761 | ) |  |  | (304,346 | )
Deferred tax assets after valuation allowance |  |  | — |  |  |  | — |
Deferred tax liability: |  |  |  |  |  |  |  |
In process research and development |  |  | (3,377 | ) |  |  | (3,377 | )
Net deferred tax liability |  | $ | (3,377 | ) |  | $ | (3,377 | )

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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