INCOME TAXES (Details Narrative) - USD ($)	3 Months Ended	6 Months Ended
Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
INCOME TAXES
Provision for income tax	$ 34,000	$ 4,000	$ 56,000	$ 215,000

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

No definition available.

Name:	aehr_ProvisionForIncomeTax
Namespace Prefix:	aehr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration