| Cover | Dec. 16, 2020 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 16, 2020 |
| Entity Registrant Name | KIMBALL ELECTRONICS, INC. |
| Entity Incorporation, State or Country Code | IN |
| Entity File Number | 001-36454 |
| Entity Tax Identification Number | 35-2047713 |
| Entity Address, Address Line One | 1205 Kimball Boulevard |
| Entity Address, City or Town | Jasper |
| Entity Address, State or Province | IN |
| Entity Address, Postal Zip Code | 47546 |
| City Area Code | 812 |
| Local Phone Number | 634-4000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, no par value |
| Trading Symbol | KE |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001606757 |
| Amendment Flag | false |
