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Contribution for joint venture for future development.

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Development of building.

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Distributions in Excess of Investment in Unconsolidated Joint Venture

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Equity Method Investment, Right and Share of Income and (Loss)

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Equity Method Investment Summarized Financial Information, Line of Credit Facility, Maximum Borrowing Capacity

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Investment in Joint Venture Purchase Price Increase Amount

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Lease of building.

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Number of joint venture contracts.

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Percentage Of Building Leased

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Net increase or decrease in the carrying amount of the debt instrument for the period.

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This element represents disclosure of the amount of gain which has been deferred as the result of the sale of a business or operating assets to a highly leveraged entity which deferred gain has been reflected in the accompanying statement of financial position as reduction from the related asset.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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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..

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Amount of investment in equity method investee and investment in and advance to affiliate.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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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.

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INVESTMENT IN UNCONSOLIDATED AND CONSOLIDATED JOINT VENTURES - Investment Information (Details)					1 Months Ended						3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 18, 2022 USD ($)	Mar. 29, 2022 ft²	Mar. 25, 2021 USD ($) ft²	Apr. 01, 2019 USD ($)	Feb. 28, 2022 unit	Jun. 30, 2021 USD ($) ft²	Nov. 30, 2018 ft²	Sep. 30, 2016 ft²	Aug. 31, 2016 USD ($) ft²	Aug. 31, 2009 a	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) ft² venture	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2013 ft²	Jun. 30, 2022	Jun. 01, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures											$ 38,605,000		$ 38,605,000		$ 43,418,000
Equity in Earnings (Loss)											1,991,000	$ 1,510,000	4,867,000	$ 2,816,000
Investment in unconsolidated joint ventures											38,605,000		38,605,000		43,418,000
Value of property contributed													0	8,464,000
Real estate development											$ 325,931,000		$ 325,931,000		319,030,000
Centennial
Schedule of Equity Method Investments [Line Items]
Consolidated joint venture, ownership interest											93.20%		93.20%
TRC-MRC 4, LLC
Schedule of Equity Method Investments [Line Items]
Debt											$ 35,752,000		$ 35,752,000		16,307,000
TRC-MRC 3, LLC
Schedule of Equity Method Investments [Line Items]
Debt											34,705,000		34,705,000		35,324,000
TRC-MRC 2, LLC
Schedule of Equity Method Investments [Line Items]
Debt											22,776,000		22,776,000		23,255,000
TRC-MRC 1, LLC
Schedule of Equity Method Investments [Line Items]
Debt											22,943,000		22,943,000		23,400,000
Total
Schedule of Equity Method Investments [Line Items]
Debt											157,667,000		157,667,000		141,917,000
TRCC/Rock Outlet Center, LLC
Schedule of Equity Method Investments [Line Items]
Debt											27,982,000		27,982,000		28,783,000
Petro Travel Plaza Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											$ 2,192,000	1,785,000	$ 5,306,000	3,453,000
Unconsolidated joint ventures, ownership interest											50.00%		50.00%
Right and share of profit and loss											60.00%		60.00%
Investment in unconsolidated joint ventures											$ 26,421,000		$ 26,421,000		22,915,000
Majestic Realty Co.
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures									$ 24,773,000
Number of joint venture contracts \| venture													6
Area of building owned and leased \| ft²									651,909
TRC-MRC 5 LLC
Schedule of Equity Method Investments [Line Items]
Number of acres for development \| ft²		446,400
TRCC-East
Schedule of Equity Method Investments [Line Items]
Number of acres for development \| ft²																326,000
Number of multi-family rental units \| unit					495
Percentage of building leased											100.00%		100.00%
Area of building owned and leased \| ft²								480,480					240,000
Deficit balance											$ 1,747,000		$ 1,747,000
TRC-MRC 4, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											0	(1,000)	(5,000)	(1,000)
Investment in unconsolidated joint ventures											4,663,000		4,663,000		4,669,000
Number of acres for development \| ft²			629,274			630,000
Construction loan			$ 47,500,000
Value of property contributed															8,464,000
Real estate development						$ 2,900,000									2,895,000
Equity method investment, deferred gain on sale			$ 2,785,000			$ 2,800,000
Percentage of building leased																	100.00%
TRC-MRC 3, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											78,000	(47,000)	220,000	(161,000)
Investment in unconsolidated joint ventures											$ 409,000		$ 409,000		859,000
Number of acres for development \| ft²							579,040
Percentage of building leased											100.00%		100.00%
TRC-MRC 3, LLC \| Land
Schedule of Equity Method Investments [Line Items]
Value of property contributed				$ 5,854,000
TRC-MRC 2, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											$ 171,000	152,000	$ 512,000	475,000
Investment in unconsolidated joint ventures											$ 0		$ 0		0
Percentage of building leased											100.00%		100.00%
Debt instrument face amount																		$ 25,240,000
Deficit balance											$ 2,470,000		$ 2,470,000
TRC-MRC 1, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											29,000	19,000	26,000	67,000
Investment in unconsolidated joint ventures											0		0		0
Construction loan											25,030,000		25,030,000
Rockefeller Joint Ventures
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint ventures											6,937,000		$ 6,937,000
Number of joint venture contracts \| venture													1
18-19 West, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											(7,000)	(15,000)	$ (31,000)	75,000
Investment in unconsolidated joint ventures											$ 0		$ 0		6,877,000
Number of acres for development \| a										61.5
Investment in joint venture purchase price increase amount															15,213,000
Final cash distribution by joint venture	$ 386,000
Five West Parcel, LLC
Schedule of Equity Method Investments [Line Items]
Unconsolidated joint ventures, ownership interest											50.00%		50.00%			50.00%
TRCC/Rock Outlet Center, LLC
Schedule of Equity Method Investments [Line Items]
Equity in Earnings (Loss)											$ (472,000)	$ (383,000)	$ (1,161,000)	$ (1,092,000)
Investment in unconsolidated joint ventures											$ 6,937,000		6,937,000		$ 8,098,000
TRCC/Rock Outlet Center, LLC \| Total
Schedule of Equity Method Investments [Line Items]
Decrease in outstanding amount													$ 4,600,000