XML 20 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Document and Entity Information - shares
6 Months Ended
Nov. 30, 2019
Dec. 31, 2019
Document And Entity Information    
Entity Registrant Name AEHR TEST SYSTEMS  
Entity Central Index Key 0001040470  
Document Type 10-Q  
Document Period End Date Nov. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --05-31  
Is Entity's Reporting Status Current? Yes  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   22,915,648
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2020