Quarterly report pursuant to Section 13 or 15(d)


Cover - shares
6 Months Ended
Jun. 30, 2021
Aug. 13, 2021
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2021  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2021  
Current Fiscal Year End Date --12-31  
Entity File Number 001-38306  
Entity Registrant Name Ensysce Biosciences, Inc.  
Entity Central Index Key 0001716947  
Entity Tax Identification Number 82-2755287  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 7946 Ivanhoe Avenue  
Entity Address, Address Line Two Suite 201  
Entity Address, City or Town La Jolla  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92037  
City Area Code (858)  
Local Phone Number 263-4196  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Bankruptcy Proceedings, Reporting Current true  
Entity Common Stock, Shares Outstanding   24,255,786
Common Stock [Member]    
Document Information [Line Items]    
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol ENSC  
Security Exchange Name NASDAQ  
Warrants [Member]    
Document Information [Line Items]    
Title of 12(b) Security Warrants to purchase one share of Common Stock  
Trading Symbol ENSCW  
Security Exchange Name NASDAQ