v3.26.1
Document And Entity Information
Mar. 30, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Current Fiscal Year End Date --12-31
Document Period End Date Mar. 30, 2026
Entity Registrant Name FibroBiologics, Inc.
Entity Central Index Key 0001958777
Entity Emerging Growth Company true
Entity File Number 001-41934
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 86-3329066
Entity Address, Address Line One 455 E. Medical Center Blvd, Suite 300
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77598
City Area Code 281
Local Phone Number 671-5150
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Ex Transition Period false
Title of 12(b) Security Common Stock, $0.00001 par value
Trading Symbol FBLG
Security Exchange Name NASDAQ