RENTAL INCOME (Concentration) (Details) - USD ($)	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Concentration Risk
Aggregate contingent rentals	$ 515,000	$ 441,000
Commercial rental income \| Major tenant \| Staples and Trader Joes \| WRF Associates LLC Strip Mall Framingham, Massachusetts
Concentration Risk
Concentration risk percentage	21.00%

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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