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Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2023
Apr. 29, 2024
Jun. 30, 2023
Document and Entity Information [Abstract]      
Document Type 10-K/A    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Entity File Number 1-08546    
Entity Registrant Name TRINITY PLACE HOLDINGS INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-2465228    
Entity Address State Or Province NY    
Entity Address, Address Line One 340 Madison Avenue    
Entity Address, City or Town New York    
Entity Address, Postal Zip Code 10173    
City Area Code 212    
Local Phone Number 235-2190    
Title of 12(b) Security Common Stock $0.01 Par Value Per Share    
Trading Symbol TPHS    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 13,704,000
Entity Common Stock, Shares Outstanding   64,046,473  
Entity Central Index Key 0000724742    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name BDO USA, P.C.    
Auditor Location New York, New York    
Auditor Firm ID 243