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INVESTMENT ASSETS, NET - Additional Information (Details)	12 Months Ended
	Apr. 30, 2022 USD ($) ft²	Apr. 30, 2021 USD ($) ft²
Depreciation on buildings | $	$ 201,000	$ 542,000
Warehouse and Office Buildings
Area of Land	143,000	61,000
Florida | Warehouse and Office Buildings
Area of Land	143,000

X

- Definition

The cumulative amount of depreciation for buildings.

+ References

No definition available.

+ Details

Name:	axr_DepreciationOnBuildings
Namespace Prefix:	axr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=axr_WarehouseAndOfficeBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=stpr_FL
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: