XML 29 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Mar. 16, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2022    
Document Fiscal Year Focus 2022    
Entity Current Reporting Status Yes    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Document Fiscal Period Focus FY    
Trading Symbol EQ    
Entity Registrant Name EQUILLIUM, INC.    
Entity Central Index Key 0001746466    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   34,414,149  
Entity Public Float     $ 43.1
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Entity File Number 001-38692    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 82-1554746    
Entity Interactive Data Current Yes    
Security Exchange Name NASDAQ    
Entity Address, Address Line One 2223 Avenida de la Playa    
Entity Address, Address Line Two Suite 105    
Entity Address, City or Town La Jolla    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92037    
City Area Code 858    
Local Phone Number 412-5302    
Document Annual Report true    
Document Transition Report false    
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Part III of this Annual Report on Form 10-K incorporates by reference certain information from the registrant’s definitive Proxy Statement for its 2023 annual meeting of stockholders, which the registrant intends to file pursuant to Regulation 14A with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year end of December 31, 2022. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy Statement is not deemed to be filed as part of this Form 10-K.

    
Auditor Name KPMG LLP    
Auditor Location San Diego, California, United States    
Auditor Firm ID 185