XML 16 R1.htm IDEA: XBRL DOCUMENT v3.22.4
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Feb. 03, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-39620    
Entity Registrant Name PRAXIS PRECISION MEDICINES, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-5195942    
Entity Address, Address Line One 99 High Street    
Entity Address, Address Line Two 30th Floor    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02110    
City Area Code 617    
Local Phone Number 300-8460    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol PRAX    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 103.8
Entity Common Stock, Shares Outstanding   52,393,118  
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001689548