XML 12 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2021
May 07, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q1  
Entity Registrant Name Terns Pharmaceuticals, Inc.  
Entity Central Index Key 0001831363  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Small Business true  
Entity Common Stock, Shares Outstanding   25,113,167
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 001-39926  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 98-1448275  
Entity Address Address Line1 1065 East Hillsdale Blvd  
Entity Address, Address Line Two Suite 100  
Entity Address, City or Town Foster City  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94404  
City Area Code 650  
Local Phone Number 525-5535  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol TERN  
Security Exchange Name NASDAQ