Quarterly report pursuant to Section 13 or 15(d)

DOCUMENT AND ENTITY INFORMATION

v3.21.1
DOCUMENT AND ENTITY INFORMATION - shares
 3 Months Ended
Mar. 31, 2021
Apr. 30, 2021
DOCUMENT AND ENTITY INFORMATION    
Document Type 10-Q  
Document Quarterly Report true  
Document Fiscal Period Focus Q1  
Current Fiscal Year End Date --12-31  
Document Period End Date Mar. 31, 2021  
Document Transition Report false  
Entity File Number 0-29889  
Entity Registrant Name RIGEL PHARMACEUTICALS INC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 94-3248524  
Entity Address, Address Line One 1180 Veterans Blvd.  
Entity Address, City or Town South San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94080  
City Area Code 650  
Local Phone Number 624-1100  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol RIGL  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0001034842  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   170,164,333
Document Fiscal Year Focus 2021