v3.26.1
Cover - shares
3 Months Ended
Mar. 31, 2026
May 05, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-38903  
Entity Registrant Name POSTAL REALTY TRUST, INC.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 83-2586114  
Entity Address, Address Line One 75 Columbia Avenue  
Entity Address, City or Town Cedarhurst  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 11516  
City Area Code 516  
Local Phone Number 295-7820  
Title of 12(b) Security Class A Common Stock, par value $0.01 per share  
Trading Symbol PSTL  
Security Exchange Name NYSE  
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   27,623,858
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Entity Central Index Key 0001759774  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1