XML 54 R1.htm IDEA: XBRL DOCUMENT v3.26.1
Cover - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Feb. 01, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference [Text Block] None.    
Entity Registrant Name Polaryx Therapeutics, Inc.    
Entity Central Index Key 0002075320    
Entity File Number 001-43080    
Entity Tax Identification Number 47-3393659    
Entity Incorporation, State or Country Code NV    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Public Float     $ 0
Entity Address, Address Line One South Tower    
Entity Address, Address Line Two 140 E Ridgewood Avenue    
Entity Address, Address Line Three Suite 415    
Entity Address, City or Town Paramus    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07652    
City Area Code (201)    
Local Phone Number 940-7236    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol PLYX    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   47,343,297