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Accrued Liabilities (Tables) | 12 Months Ended
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Oct. 31, 2020
Accrued Liabilities Current [Abstract] |
Schedule of Accrued Liabilities | Accrued liabilities as of October 31, 2020 and 2019 consisted of the following (in thousands):
|  | 2020 |  |  | 2019 |
Accrued payroll and employee benefits |  | $ | 4,461 |  |  | $ | 2,282 |
Accrued product warranty cost (1) |  |  | 97 |  |  |  | 144 |
Accrued service agreement and PPA costs (2) |  |  | 7,037 |  |  |  | 4,047 |
Accrued legal, taxes, professional and other |  |  | 4,086 |  |  |  | 4,979 |
Accrued liabilities |  | $ | 15,681 |  |  | $ | 11,452 |
(1) | Activity in the accrued product warranty cost represents reduction related to actual warranty activity as contracts progress through the warranty period. Product warranty expense for each of the years ended October 31, 2020 and 2019 was $0.1 million.
(2) | Accrued service agreement costs represent loss accruals on service contracts of $5.5 million as of October 31, 2020, which increased from $3.3 million as of October 31, 2019. The increase is the result of a change in the timing of future module replacements. The accruals for performance guarantees on service agreements and PPAs increased from $0.8 million as of October 31, 2019 to $1.4 million as of October 31, 2020.

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