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INVESTMENT ASSETS, NET - Additional Information (Details) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2021 USD ($) | Jan. 31, 2022 USD ($) ft² | Jan. 31, 2021 USD ($) | Oct. 31, 2021 ft² | Apr. 30, 2021 ft²
Area of Land |  | 143,000 |  |  |
Area of land sold |  | 143,000 |  |  |
Depreciation on buildings | $ | $ 152,000 | $ 200,000 | $ 415,000 |  |
Warehouse and Office Buildings |  |  |  |  |
Area of Land |  |  |  |  | 143,000
Area of land sold |  |  |  | 143,000 |
Florida |  |  |  |  |
Area of land sold |  | 14,000 |  |  |
Florida | Warehouse and Office Buildings |  |  |  |  |
Area of land sold |  | 143,000 |  |  |

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- Definition The area of land sold. + References No definition available. + Details
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- Definition The cumulative amount of depreciation for buildings. + References No definition available. + Details
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- Definition Area of land held. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |