Cover - USD ($)	12 Months Ended
	May 31, 2022	Jul. 31, 2022	Nov. 30, 2021
Cover [Abstract]
Entity Registrant Name	AEHR TEST SYSTEMS
Entity Central Index Key	0001040470
Document Type	10-K
Amendment Flag	false
Entity Voluntary Filers	No
Current Fiscal Year End Date	--05-31
Entity Well Known Seasoned Issuer	No
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	May 31, 2022
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Entity Common Stock Shares Outstanding		27,344,375
Entity Public Float			$ 1
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-22893
Entity Incorporation State Country Code	CA
Entity Tax Identification Number	94-2424084
Entity Address Address Line 1	400 KATO TERRACE
Entity Address City Or Town	FREMONT
Entity Address State Or Province	CA
Entity Address Postal Zip Code	94539
City Area Code	510
Icfr Auditor Attestation Flag	false
Auditor Name	BPM LLP
Auditor Location	Walnut Creek, California
Local Phone Number	623-9400
Security 12b Title	Common Stock, par value $0.01 per share
Trading Symbol	AEHR
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
Auditor Firm Id	207