RENTAL INCOME (Concentration) (Details) - USD ($)	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Concentration Risk
Aggregate contingent rentals	$ 437,000	$ 290,000
Commercial rental income \| Major tenant \| Staples and Trader Joes
Concentration Risk
Concentration risk percentage	30.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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