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OTHER ASSETS - Additional Information (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2022 USD ($) ft² | Jan. 31, 2021 USD ($) | Jan. 31, 2022 USD ($) ft² | Jan. 31, 2021 USD ($) | Aug. 31, 2021 ft²
Area of Land | ft² | 143,000 |  | 143,000 |  |
Office building |  |  |  |  |
Area of Land | ft² |  |  |  |  | 7,000
Property and equipment | Right of use assets |  |  |  |  |
Amortization of leased cost | $ | $ 8,000 | $ 41,000 | $ 46,000 | $ 83,000 |
Right of use assets |  |  |  |  |
Depreciation expense associated with property and equipment | $ | $ 14,000 | $ 2,000 | $ 17,000 | $ 9,000 |

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