Gross proceeds received from the sale of real estate during the current period.

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The cash outflow to repay long-term debt that is wholly or partially secured by collateral upon sale of the property.

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Income (loss) from sale of consolidated JV property attributable to noncontrolling interest.

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Amount of contracted sale price for property held-for-sale.

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Represents the amount of unbilled rent receivable written off during the period relating to properties sold.

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No definition available.

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Represents the amount of write-off of net unamortized intangible lease liabilities and assets.

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Represents the amount write-off of the unamortized intangible lease assets.

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Represents the amount write-off of the unamortized intangible lease liability.

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Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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SALES OF PROPERTIES (Details) - USD ($)											3 Months Ended	12 Months Ended
SALES OF PROPERTIES (Details) - USD ($)	Aug. 08, 2022	Jun. 17, 2022	May 02, 2022	Mar. 22, 2022	Dec. 27, 2021	Jul. 01, 2021	Jun. 17, 2021	Dec. 15, 2020	Jul. 01, 2020	Feb. 11, 2020	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SALES OF PROPERTIES
Prepayment costs on debt													$ 901,000	$ 1,123,000
Write-off of unbilled rent receivable, as a reduction to Gain on sale of real estate, net												$ 519,000	1,438,000	365,000
Pet Smart and Guitar Center retail properties, Houston, Texas
SALES OF PROPERTIES
Seller-financing provided by the Company								$ 4,613,000
Properties disposed of by sale
SALES OF PROPERTIES
Gross Sales Price												31,600,000	54,510,000	34,340,000
Gain on Sale of Real Estate, Net												16,762,000	25,463,000	17,280,000
Mortgage Prepaid on Sale												1,563,000	20,387,000	11,815,000
Prepayment costs on debt													848,000	1,123,000
Write-off of unbilled rent receivable, as a reduction to Gain on sale of real estate, net												519,000	1,438,000	365,000
Write-off of net unamortized lease liabilities and assets, as a reduction to Gain on sale of real estate, net												4,000
Write-off of unamortized lease assets, as a reduction to Gain on sale of real estate, net													$ 967,000
Write-off of the unamortized intangible lease liability														$ 367,000
Properties disposed of by sale \| Wendy's restaurants - 4 properties, Various Cities, Pennsylvania
SALES OF PROPERTIES
Gross Sales Price				$ 10,000,000
Gain on Sale of Real Estate, Net				$ 4,649,000
Properties disposed of by sale \| Orlando Baking industrial property, Columbus, Ohio
SALES OF PROPERTIES
Gross Sales Price			$ 8,500,000
Gain on Sale of Real Estate, Net			$ 6,925,000
Properties disposed of by sale \| Haverty's retail property, Fayetteville, Georgia
SALES OF PROPERTIES
Gross Sales Price		$ 4,800,000
Gain on Sale of Real Estate, Net		1,125,000
Mortgage Prepaid on Sale		$ 1,563,000
Properties disposed of by sale \| Vacant Retail Property, Columbus, Ohio
SALES OF PROPERTIES
Gross Sales Price	$ 8,300,000
Gain on Sale of Real Estate, Net	$ 4,063,000
Properties disposed of by sale \| Whole Foods retail property & parking lot, West Hartford, Connecticut
SALES OF PROPERTIES
Gross Sales Price							$ 40,510,000
Gain on Sale of Real Estate, Net							21,469,000
Mortgage Prepaid on Sale							15,403,000
Prepayment costs on debt							$ 799,000
Properties disposed of by sale \| Vacant retail property, Philadelphia, Pennsylvania
SALES OF PROPERTIES
Gross Sales Price						$ 8,300,000
Gain on Sale of Real Estate, Net						1,299,000
Mortgage Prepaid on Sale						3,574,000
Prepayment costs on debt						26,000
Properties disposed of by sale \| Wendys restaurant property, Hanover, Pennsylvania
SALES OF PROPERTIES
Gross Sales Price					$ 2,815,000
Gain on Sale of Real Estate, Net					1,331,000
Mortgage Prepaid on Sale					696,000
Prepayment costs on debt					11,000
Properties disposed of by sale \| Wendys restaurant property, Gettysburg, Pennsylvania
SALES OF PROPERTIES
Gross Sales Price					2,885,000
Gain on Sale of Real Estate, Net					1,364,000
Mortgage Prepaid on Sale					714,000
Prepayment costs on debt					$ 12,000
Properties disposed of by sale \| Hobby Lobby retail property, Onalaska, Wisconsin
SALES OF PROPERTIES
Gross Sales Price										$ 7,115,000
Gain on Sale of Real Estate, Net										4,252,000
Mortgage Prepaid on Sale										3,332,000
Prepayment costs on debt										$ 290,000
Properties disposed of by sale \| CarMax retail property, Knoxville, Tennessee
SALES OF PROPERTIES
Gross Sales Price									$ 18,000,000
Gain on Sale of Real Estate, Net									10,316,000
Mortgage Prepaid on Sale									8,483,000
Prepayment costs on debt									$ 833,000
Properties disposed of by sale \| Pet Smart retail property, Houston, Texas
SALES OF PROPERTIES
Gross Sales Price								4,013,000
Gain on Sale of Real Estate, Net								1,067,000
Properties disposed of by sale \| Guitar Center retail property, Houston, Texas
SALES OF PROPERTIES
Gross Sales Price								5,212,000
Gain on Sale of Real Estate, Net								$ 1,645,000
Properties disposed of by sale \| Real Estate in Hauppauge, NY \| Forecast
SALES OF PROPERTIES
Gain on Sale of Real Estate, Net											$ 1,500,000
Properties held-for-sale \| Real Estate in Hauppauge, NY
SALES OF PROPERTIES
Contracted sale price of property												$ 4,200,000
Consolidated Joint Venture-VIEs \| Properties disposed of by sale
SALES OF PROPERTIES
Non-controlling interest's share of the gain						$ 130,000
Consolidated Joint Venture-VIEs \| Properties disposed of by sale \| Vacant retail property, Philadelphia, Pennsylvania
SALES OF PROPERTIES
Ownership interest in consolidated joint venture of the company (as a percent)						90.00%