| Cover | Sep. 27, 2024 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Sep. 27, 2024 |
| Entity Registrant Name | IMMERSION CORPORATION |
| Entity File Number | 001-38334 |
| Entity Tax Identification Number | 94-3180138 |
| Entity Address, Address Line One | 2999 N.E. 191st Street, Suite 610 |
| Entity Address, City or Town | Aventura |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33180 |
| City Area Code | 408 |
| Local Phone Number | 467-1900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001058811 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
| Common Stock | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | IMMR |
| Security Exchange Name | NASDAQ |
| Series B | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Series B Junior Participating Preferred Stock Purchase Rights |
