Inventory, Real Estate, Improvements, Accumulated Depreciation

No definition available.

Name:	trc_InventoryRealEstateImprovementsAccumulatedDepreciation
Namespace Prefix:	trc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Inventory, Real Estate, Improvements, Gross

+ References

No definition available.

+ Details

Name:	trc_InventoryRealEstateImprovementsGross
Namespace Prefix:	trc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Real Estate Properties Delivered

+ References

No definition available.

+ Details

Name:	trc_NumberOfRealEstatePropertiesDelivered
Namespace Prefix:	trc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents improvements to real estate during development for ultimate sale to third parties. Improvements may consist of project infrastructure and other expenditures necessary to completion of the development project which is generally of a long-term nature.

+ References

No definition available.

+ Details

Name:	us-gaap_InventoryRealEstateImprovements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_InventoryRealEstateLandAndLandDevelopmentCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_TejonMountainVillageLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_CentennialFoundersLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_GrapevineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_TejonRanchCommerceCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_TejonRanchCommerceCenterCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=trc_TejonRanchCommerceCenterMultifamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

REAL ESTATE (Details) $ in Thousands	1 Months Ended
REAL ESTATE (Details) $ in Thousands	Jul. 31, 2025 building	May 31, 2025 building	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Real estate development			$ 356,567	$ 377,905
Real estate and improvements - held for lease, gross			84,814	20,596
Real estate and improvements - held for lease, net			79,177	16,253
Number of real estate properties delivered \| building	3	3
Mountain Village
Property, Plant and Equipment [Line Items]
Real estate development			161,388	158,348
Centennial
Property, Plant and Equipment [Line Items]
Real estate development			128,549	124,136
Grapevine
Property, Plant and Equipment [Line Items]
Real estate development			45,801	42,456
Tejon Ranch Commerce Center
Property, Plant and Equipment [Line Items]
Real estate development			20,829	52,965
Tejon Ranch Commerce Center - Commercial
Property, Plant and Equipment [Line Items]
Real estate development			20,829	23,724
Real estate and improvements - held for lease, gross			20,644	20,596
Less accumulated depreciation			(4,677)	(4,343)
Tejon Ranch Commerce Center - Residential
Property, Plant and Equipment [Line Items]
Real estate development			0	29,241
Real estate and improvements - held for lease, gross			64,170	0
Less accumulated depreciation			$ (960)	$ 0