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Document and Entity Information Document - USD ($)
 12 Months Ended
Jun. 30, 2015
Aug. 18, 2015
Dec. 31, 2014
Document Information      
Entity Registrant Name Kimball Electronics, Inc.    
Entity Central Index Key 0001606757    
Current Fiscal Year End Date --06-30    
Entity Filer Category Non-accelerated Filer    
Document Type 10-K    
Document Period End Date Jun. 30, 2015    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   29,171,749  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 343,600,000