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v3.21.1

Directors and Employees' Benefits (Details Narrative) - shares | 3 Months Ended | 12 Months Ended
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Mar. 31, 2021 | Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |  |
Shares reserved for incentive compensation plan | 500,000 |
Stock options granted |  |

X
- Definition Shares reserved for incentive compensation plan. + References No definition available. + Details
Name: | AEI_StockReservedDuringPeriodSharesIncentiveCompensationPlan
Namespace Prefix: | AEI_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration