Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2024	Apr. 22, 2025	Jun. 30, 2024
Document Information Line Items
Entity Central Index Key	0001279715
Document Type	10-K/A
Document Annual Report	true
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
Document Transition Report	false
Entity File Number	000-50587
Entity Registrant Name	WRIGHT INVESTORS’ SERVICE HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-4005439
Entity Address, Address Line One	118 North Bedford Road
Entity Address, Address Line Two	Ste. 100
Entity Address, City or Town	Mount Kisco
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10549
City Area Code	(914)
Local Phone Number	242-5700
Title of 12(g) Security	Common Stock, $0.01 Par Value
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
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	true
Entity Public Float			$ 4,000,000
Entity Common Stock, Shares Outstanding		20,620,711
Amendment Description	Wright Investors’ Service Holdings, Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-K/A (this “Form 10-K/A”) pursuant to General Instruction G (3) to Form 10-K, which amends and supplements our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, which was filed with the Securities and Exchange Commission (the “SEC”) on March 27, 2025 (the “2024 Form 10-K”). This Form 10-K/A provides the information required to be disclosed in Part III, Items 10 through 14 and updates the information contained in Part IV, Item 15. As a result of this amendment, the Company is filing as exhibits to this Form 10-K/A the certifications required under Section 302 of the Sarbanes-Oxley Act of 2002. Because no financial statements are contained within this Form 10-K/A, the Company is not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Except for the amendments described above, this Form 10-K/A does not modify or update the disclosures in, or exhibits to, the 2024 Form 10-K.
Auditor Name	EisnerAmper LLP
Auditor Location	Fort Lauderdale, Florida
Auditor Firm ID	274
Amendment Flag	true
Document Fiscal Period Focus	FY
No Trading Symbol Flag	true

Wright Investors Service Holdings, Inc. 10-K/A