| Document And Entity Information | Feb. 15, 2021 |
| Document Information [Line Items] | |
| Entity, Registrant Name | CEVA, INC. |
| Document, Type | 8-K |
| Document, Period End Date | Feb. 15, 2021 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 000-49842 |
| Entity, Tax Identification Number | 77-0556376 |
| Entity, Address, Address Line One | 15245 Shady Grove Road |
| Entity, Address, Address Line Two | Suite 400 |
| Entity, Address, City or Town | Rockville |
| Entity, Address, State or Province | MD |
| Entity, Address, Postal Zip Code | 20850 |
| City Area Code | 240 |
| Local Phone Number | 308-8328 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | CEVA |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0001173489 |
