Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 01, 2024	Jun. 29, 2023
Entity Information [Line Items]
Document Annual Report	true
Document Type	10-K
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	000-38334
Entity Registrant Name	Immersion Corporation
Entity Incorporation, State or Country Code	DE
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
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Financial Statement Error Correction [Flag]	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Documents Incorporated by Reference	Items 10 (as to directors and executive officers, and Delinquent Section 16(a) Reports (if any)), 11, 12 (as to Beneficial Ownership), 13 and 14 of Part III of this Annual Report on Form 10-K incorporate by reference portions of the Registrant’s definitive Proxy Statement for the 2024 Annual Meeting of Stockholders.
Entity Central Index Key	0001058811
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		31,700,667
Entity Public Float			$ 214,198,478
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.001 par value
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
Trading Symbol	IMMR
Security Exchange Name	NASDAQ