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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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X

- Definition

The cumulative amount of depreciation for buildings.

+ References

No definition available.

+ Details

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Balance Type:	debit
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X

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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