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RENTAL REVENUE - Additional information (Details)	Dec. 31, 2019 tenant
Number Of Tenants	2
Paramus New Jersey Property [Member]
Leased Asset Percent	100.00%

Percentage of leased space occupied by tenants.

No definition available.

Name:	tphs_LeasedAssetPercent
Namespace Prefix:	tphs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the number of tenants occupied the leased property.

No definition available.

Name:	tphs_NumberOfTenants
Namespace Prefix:	tphs_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=tphs_ParamusNewJerseyPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: