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Benefit Plans (Tables) | 9 Months Ended
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Jul. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Schedule of Share-Based Compensation Reflected in Consolidated Statement of Operations and Comprehensive Loss | Share-based compensation was reflected in the Consolidated Statements of Operations and Comprehensive Loss as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months Ended July 31, | ​ | Nine months Ended July 31,
​ |  | ​ | 2021 |  | ​ | 2020 | ​ | 2021 |  | 2020
Cost of revenues | ​ | $ | 133 | ​ | $ | 46 | ​ | $ | 449 | ​ | $ | 267
General and administrative expense | ​ | ​ | 706 | ​ | ​ | 338 | ​ | ​ | 2,941 | ​ | ​ | 919
Research and development expense | ​ | ​ | 33 | ​ | ​ | 6 | ​ | ​ | 97 | ​ | ​ | 40
​ | ​ | $ | 872 | ​ | $ | 390 | ​ | $ | 3,487 | ​ | $ | 1,226
Summary of RSA and RSU Activity | The following table summarizes our RSA and RSU activity for the nine months ended July 31, 2021:
​ | ​ | ​ | ​ | ​ | ​ | ​
Restricted Stock Awards and Units |  | ​ | Shares |  | Weighted-Average Fair Value
Outstanding as of October 31, 2020 | ​ | ​ | 2,067,140 | ​ | $ | 5.06
Granted - performance units | ​ | ​ | 551,252 | ​ | ​ | 14.89
Granted - time-vesting restricted stock units | ​ | ​ | 296,826 | ​ | ​ | 3.28
Vested | ​ | ​ | (221) | ​ | ​ | 20.40
Outstanding as of January 31, 2021 | ​ | ​ | 2,914,997 | ​ | $ | 5.46
Granted - time-vesting restricted stock units | ​ | ​ | 37,550 | ​ | ​ | 11.05
Vested | ​ | ​ | (81,878) | ​ | ​ | 13.13
Forfeited | ​ | ​ | (53,532) | ​ | ​ | 10.86
Outstanding as of April 30, 2021 | ​ | ​ | 2,817,137 | ​ | $ | 5.24
Granted - time-vesting restricted stock units | ​ | ​ | 19,826 | ​ | ​ | 7.00
Vested | ​ | ​ | (835) | ​ | ​ | 22.44
Forfeited | ​ | ​ | (170,364) | ​ | ​ | 7.53
Outstanding as of July 31, 2021 | ​ | ​ | 2,665,764 | ​ | $ | 5.10

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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