v3.26.1
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Jul. 27, 2026
May 29, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity File Number 001-15409    
Entity Registrant Name PILLARSTONE CAPITAL REIT    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 39-6594066    
Entity Address, Address Line One 9825 E Bell Rd., Suite 130    
Entity Address, City or Town Scottsdale    
Entity Address, State or Province AZ    
Entity Address, Postal Zip Code 85260    
City Area Code 281    
Local Phone Number 747-9997    
Title of 12(g) Security Common Shares of Beneficial Interest, par value $0.01 per share    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Interactive Data Current No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 4,609
Entity Common Stock, Shares Outstanding (in shares)   657,084  
Auditor Firm ID 2738    
Auditor Name M&K CPAS, PLLC    
Auditor Location The Woodlands, TX    
Entity Central Index Key 0000928953    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false