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v3.22.2

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: |