Organization and Description of Business	12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	1. ORGANIZATION AND DESCRIPTION OF BUSINESS: GTJ REIT, Inc. (the “Company” or “GTJ REIT”) was incorporated on June 26, 2006, under the Maryland General Corporation Law. The Company is focused primarily on the acquisition, ownership, management, and operation of commercial real estate. The Company has elected to be treated as a real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended (the “Code”) and elected December 31 as its fiscal year end. Under the REIT operating structure, the Company is permitted to deduct the dividends paid to its stockholders when determining its taxable income. Assuming dividends equal or exceed the Company’s taxable income, the Company generally will not be required to pay federal corporate income taxes on such income. Any references to square footage, acreage, property count, or occupancy percentages, and any amounts derived from these values in these notes to the consolidated financial statements are unaudited. On January 17, 2013, the Company closed on a business combination with Wu/Lighthouse Portfolio, LLC, in which a limited partnership (the “Operating Partnership”) owned and controlled by the Company, acquired all outstanding ownership interests of a portfolio consisting of 25 commercial properties (the “Acquired Properties”) located in New York, New Jersey and Connecticut, in exchange for 33.29% of the outstanding limited partnership interest in the Operating Partnership. The outstanding limited partnership interest in the Operating Partnership exchanged for the Acquired Properties was increased to 33.78% due to post-closing adjustments. The subsequent redemption of certain shares of GTJ REIT common stock and the purchase of a portion of the outstanding limited partnership interest resulted in a net decrease to the outstanding limited partnership interest in the Operating Partnership to 16.80%. As a result of this transaction, the Company’s then existing 7 properties and the subsequent acquisition of 20 properties and the sale of 2 properties from 2014 through 2024, the Company owned an 83.20% interest in a total of 50 properties consisting of approximately 6.4 million square feet of primarily industrial properties on approximately 410 acres of land in New York, New Jersey, Connecticut, Delaware, North Carolina and Florida as of December 31, 2024. At December 31, 2024, subject to certain anti-dilutive and other provisions contained in the governing agreements, the limited partnership interest in the Operating Partnership may be converted in the aggregate, into approximately 1.5 million shares of the Company’s common stock and approximately 1.2 million shares of the Company’s Series B preferred stock.

Organization and Description of Business

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Description of Business

1. ORGANIZATION AND DESCRIPTION OF BUSINESS:

GTJ REIT, Inc. (the “Company” or “GTJ REIT”) was incorporated on June 26, 2006, under the Maryland General Corporation Law. The Company is focused primarily on the acquisition, ownership, management, and operation of commercial real estate.

The Company has elected to be treated as a real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended (the “Code”) and elected December 31 as its fiscal year end. Under the REIT operating structure, the Company is permitted to deduct the dividends paid to its stockholders when determining its taxable income. Assuming dividends equal or exceed the Company’s taxable income, the Company generally will not be required to pay federal corporate income taxes on such income.

Any references to square footage, acreage, property count, or occupancy percentages, and any amounts derived from these values in these notes to the consolidated financial statements are unaudited.

On January 17, 2013, the Company closed on a business combination with Wu/Lighthouse Portfolio, LLC, in which a limited partnership (the “Operating Partnership”) owned and controlled by the Company, acquired all outstanding ownership interests of a portfolio consisting of 25 commercial properties (the “Acquired Properties”) located in New York, New Jersey and Connecticut, in exchange for 33.29% of the outstanding limited partnership interest in the Operating Partnership. The outstanding limited partnership interest in the Operating Partnership exchanged for the Acquired Properties was increased to 33.78% due to post-closing adjustments. The subsequent redemption of certain shares of GTJ REIT common stock and the purchase of a portion of the outstanding limited partnership interest resulted in a net decrease to the outstanding limited partnership interest in the Operating Partnership to 16.80%. As a result of this transaction, the Company’s then existing 7 properties and the subsequent acquisition of 20 properties and the sale of 2 properties from 2014 through 2024, the Company owned an 83.20% interest in a total of 50 properties consisting of approximately 6.4 million square feet of primarily industrial properties on approximately 410 acres of land in New York, New Jersey, Connecticut, Delaware, North Carolina and Florida as of December 31, 2024. At December 31, 2024, subject to certain anti-dilutive and other provisions contained in the governing agreements, the limited partnership interest in the Operating Partnership may be converted in the aggregate, into approximately 1.5 million shares of the Company’s common stock and approximately 1.2 million shares of the Company’s Series B preferred stock.