v3.25.2
Document And Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Aug. 14, 2025
Document Information [Line Items]    
Entity Central Index Key 0001719406  
Entity Registrant Name NRX Pharmaceuticals, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2024  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-38302  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 82-2844431  
Entity Address, Address Line One 1201 Orange Street, Suite 600  
Entity Address, City or Town Wilmington  
Entity Address, State or Province DE  
Entity Address, Postal Zip Code 19801  
City Area Code 484  
Local Phone Number 254-6134  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   19,705,077
Warrant [Member]    
Document Information [Line Items]    
Title of 12(b) Security Warrants to purchase Common Stock  
Trading Symbol NRXPW  
Security Exchange Name NASDAQ  
Common Stock [Member]    
Document Information [Line Items]    
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol NRXP  
Security Exchange Name NASDAQ