v3.26.1
Cover
Jun. 11, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 11, 2026
Entity File Number 000-51891
Entity Registrant Name INTERNATIONAL STEM CELL CORPORATION
Entity Central Index Key 0001355790
Entity Tax Identification Number 20-4494098
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 9745 Businesspark Ave
Entity Address, City or Town San Diego
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92131
City Area Code (760)
Local Phone Number 940-6383
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false