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Restricted Cash (Tables) | 9 Months Ended
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Jul. 31, 2021
Restricted Cash And Investments [Abstract] |
Summary of Allocation of Restricted Cash | Refer to Note 16. “Debt” for additional information on the release of the restricted cash under the Orion Facility. The allocation of restricted cash is as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | July 31, | ​ | October 31,
​ |  | 2021 |  | 2020
Cash Restricted for Outstanding Letters of Credit (1) | ​ | $ | 6,478 | ​ | $ | 6,543
Cash Restricted for PNC Sale-Leaseback Transactions (2) | ​ | ​ | 7,419 | ​ | ​ | 15,125
Cash Restricted for Crestmark Sale-Leaseback Transaction | ​ | ​ | 433 | ​ | ​ | 431
Bridgeport Fuel Cell Park Project Debt Service and Performance Reserves (3) | ​ | ​ | 10,597 | ​ | ​ | 7,549
Orion Facility - Reserves and Project Proceeds Account (4) | ​ | ​ | — | ​ | ​ | 11,193
Other | ​ | ​ | 528 | ​ | ​ | 1,344
Total Restricted Cash | ​ | ​ | 25,455 | ​ | ​ | 42,185
Restricted Cash and Cash Equivalents - Short-Term (5) | ​ | ​ | (10,212) | ​ | ​ | (9,233)
Restricted Cash and Cash Equivalents - Long-Term | ​ | $ | 15,243 | ​ | $ | 32,952
(1) | Letters of credit outstanding as of July 31, 2021 expire on various dates through August 2028.
(2) | Long and short-term reserve that is to be used primarily to fund future module exchanges for operating projects falling under the PNC sale leaseback obligations. The decrease in restricted cash at July 31, 2021 compared to October 31, 2020 is a result of the Company’s performance in completing certain module replacements resulting in cash being unrestricted.
(3) | Long and short-term reserves for the Bridgeport Fuel Cell Park Project to fund future module exchanges and other performance requirements.
(4) | Reserves relating to the Orion Facility which were released upon the repayment of the Orion Facility.
(5) | Short-term restricted cash and cash equivalents are amounts expected to be released and categorized as unrestricted cash within twelve months of the balance sheet date.

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