RENTAL INCOME (Commercial Leases) (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) ft² item
RENTAL INCOME
Annual base rent for expiring leases | $	$ 2,893,643
Total square feet for expiring leases | ft²	108,154
Total number of leases expiring | item	49
Percentage of annual base rent for expiring leases	100.00%
2021
RENTAL INCOME
Annual base rent for expiring leases | $	$ 201,568
Total square feet for expiring leases | ft²	12,982
Total number of leases expiring | item	14
Percentage of annual base rent for expiring leases	7.00%
2022
RENTAL INCOME
Annual base rent for expiring leases | $	$ 1,143,868
Total square feet for expiring leases | ft²	47,854
Total number of leases expiring | item	10
Percentage of annual base rent for expiring leases	40.00%
2023
RENTAL INCOME
Annual base rent for expiring leases | $	$ 273,081
Total square feet for expiring leases | ft²	8,062
Total number of leases expiring | item	6
Percentage of annual base rent for expiring leases	9.00%
2024
RENTAL INCOME
Annual base rent for expiring leases | $	$ 672,213
Total square feet for expiring leases | ft²	19,432
Total number of leases expiring | item	9
Percentage of annual base rent for expiring leases	23.00%
2025
RENTAL INCOME
Annual base rent for expiring leases | $	$ 395,806
Total square feet for expiring leases | ft²	14,868
Total number of leases expiring | item	8
Percentage of annual base rent for expiring leases	14.00%
2026
RENTAL INCOME
Annual base rent for expiring leases | $	$ 64,657
Total square feet for expiring leases | ft²	1,106
Total number of leases expiring | item	1
Percentage of annual base rent for expiring leases	2.00%
2030
RENTAL INCOME
Annual base rent for expiring leases | $	$ 142,450
Total square feet for expiring leases | ft²	3,850
Total number of leases expiring | item	1
Percentage of annual base rent for expiring leases	5.00%