Plant and equipment (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021 |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | $ 26,389,463 | |
Property, plant and equipment at end of period | $ 89,753,260 | | 89,753,260 | |
Borrowing costs capitalised | $ 3,325,754 | $ 0 | | |
Capitalisation rate of borrowing costs eligible for capitalisation | 11.70% | | | |
Employee Salaries Capitalized To Assets Under Construction | $ 2,754,340 | 0 | 2,754,340 | $ 0 |
Share-Based Compensation Cost Capitalized To Assets Under Construction | 365,866 | $ 0 | 365,866 | $ 0 |
Plant equipment | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 4,725,719 | |
Property, plant and equipment at end of period | 15,939,880 | | 15,939,880 | |
Storage containers | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 53,447 | |
Property, plant and equipment at end of period | 107,624 | | 107,624 | |
Vehicles | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 129,984 | |
Property, plant and equipment at end of period | 156,470 | | 156,470 | |
Leasehold improvements | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 5,654,520 | |
Property, plant and equipment at end of period | 6,747,647 | | 6,747,647 | |
Construction in progress | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 15,638,165 | |
Property, plant and equipment at end of period | 65,864,930 | | 65,864,930 | |
Computer equipment [member] | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 187,628 | |
Property, plant and equipment at end of period | 936,709 | | 936,709 | |
Cost | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 28,576,230 | |
Additions | | | 65,757,122 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 0 | |
Property, plant and equipment at end of period | 94,333,352 | | 94,333,352 | |
Cost | Plant equipment | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 6,275,419 | |
Additions | | | 12,622 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 12,875,473 | |
Property, plant and equipment at end of period | 19,163,514 | | 19,163,514 | |
Cost | Storage containers | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 67,619 | |
Additions | | | 62,227 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 0 | |
Property, plant and equipment at end of period | 129,846 | | 129,846 | |
Cost | Vehicles | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 179,298 | |
Additions | | | 62,000 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 0 | |
Property, plant and equipment at end of period | 241,298 | | 241,298 | |
Cost | Leasehold improvements | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 6,219,456 | |
Additions | | | 1,620,272 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 0 | |
Property, plant and equipment at end of period | 7,839,728 | | 7,839,728 | |
Cost | Construction in progress | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 15,638,165 | |
Additions | | | 63,102,238 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | (12,875,473) | |
Property, plant and equipment at end of period | 65,864,930 | | 65,864,930 | |
Cost | Computer equipment [member] | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 196,273 | |
Additions | | | 897,763 | |
Increase (decrease) through transfers from construction in progress, property, plant and equipment | | | 0 | |
Property, plant and equipment at end of period | 1,094,036 | | 1,094,036 | |
Accumulated depreciation | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (2,186,767) | |
Depreciation | | | (2,393,325) | |
Property, plant and equipment at end of period | (4,580,092) | | (4,580,092) | |
Accumulated depreciation | Plant equipment | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (1,549,700) | |
Depreciation | | | (1,673,934) | |
Property, plant and equipment at end of period | (3,223,634) | | (3,223,634) | |
Accumulated depreciation | Storage containers | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (14,172) | |
Depreciation | | | (8,050) | |
Property, plant and equipment at end of period | (22,222) | | (22,222) | |
Accumulated depreciation | Vehicles | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (49,314) | |
Depreciation | | | (35,514) | |
Property, plant and equipment at end of period | (84,828) | | (84,828) | |
Accumulated depreciation | Leasehold improvements | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (564,936) | |
Depreciation | | | (527,145) | |
Property, plant and equipment at end of period | (1,092,081) | | (1,092,081) | |
Accumulated depreciation | Construction in progress | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | 0 | |
Depreciation | | | 0 | |
Property, plant and equipment at end of period | 0 | | 0 | |
Accumulated depreciation | Computer equipment [member] | | | | |
Reconciliation of changes in property, plant and equipment [abstract] | | | | |
Property, plant and equipment at beginning of period | | | (8,645) | |
Depreciation | | | (148,682) | |
Property, plant and equipment at end of period | $ (157,327) | | $ (157,327) | |