XML 12 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document And Entity Information - shares
 9 Months Ended
Mar. 31, 2018
Apr. 26, 2018
Document Information [Line Items]    
Entity Registrant Name STANDEX INTERNATIONAL CORP/DE/  
Entity Central Index Key 0000310354  
Trading Symbol sxi  
Current Fiscal Year End Date --06-30  
Entity Filer Category Large Accelerated Filer  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer Yes  
Entity Common Stock, Shares Outstanding (in shares)   12,831,505
Document Type 10-Q  
Document Period End Date Mar. 31, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Amendment Flag false