v3.22.4
Cover - shares
6 Months Ended
Dec. 31, 2022
Feb. 03, 2023
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Dec. 31, 2022  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2023  
Current Fiscal Year End Date --06-30  
Entity File Number 001-38349  
Entity Registrant Name GRANITESHARES PLATINUM TRUST  
Entity Central Index Key 0001690842  
Entity Tax Identification Number 82-6644954  
Entity Incorporation, State or Country Code NY  
Entity Address, Address Line One c/o GraniteShares Inc  
Entity Address, Address Line Two 205 Hudson Street, 7th Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10013  
City Area Code (646)  
Local Phone Number 876-5096  
Title of 12(b) Security Shares  
Trading Symbol PLTM  
Security Exchange Name NYSE  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   4,750,000