v3.25.2
Document and Entity Information
Jul. 28, 2025
Document And Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 28, 2025
Entity Registrant Name DURECT CORP
Entity Incorporation State Country Code DE
Entity File Number 000-31615
Entity Tax Identification Number 94-3297098
Entity Address Address Line 1 10240 Bubb Road
Entity Address City Or Town Cupertino
Entity Address State Or Province CA
Entity Address Postal Zip Code 95014
City Area Code 408
Local Phone Number 777-1417
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001082038
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock $0.0001 par value per share
Trading Symbol DRRX
Security Exchange Name NASDAQ
Rights [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Preferred Share Purchase Rights
Security Exchange Name NASDAQ
No Trading Symbol Flag true