| Document and Entity Information | Nov. 07, 2021 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 7, 2021 |
| Entity File Number | 001-37900 |
| Entity Registrant Name | Everspin Technologies, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 26-2640654 |
| Entity Address, Address Line One | 5670 W. Chandler Blvd. |
| Entity Address, Adress Line Two | Suite 100 |
| Entity Address, City or Town | Chandler |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85226 |
| City Area Code | 480 |
| Local Phone Number | 347-1111 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.0001 |
| Trading Symbol | MRAM |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
| Entity Central Index Key | 0001438423 |
| Amendment Flag | false |
