RENTAL INCOME (Commercial Leases) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) ft² item
RENTAL INCOME
Annual base rent for expiring leases | $	$ 2,924,313
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%
2020
RENTAL INCOME
Annual base rent for expiring leases | $	$ 232,238
Total square feet for expiring leases | ft²	12,982
Total number of leases expiring | item	14
Percentage of annual base rent for expiring leases	8.00%
2021
RENTAL INCOME
Annual base rent for expiring leases | $	$ 835,995
Total square feet for expiring leases | ft²	40,586
Total number of leases expiring | item	7
Percentage of annual base rent for expiring leases	29.00%
2022
RENTAL INCOME
Annual base rent for expiring leases | $	$ 580,954
Total square feet for expiring leases | ft²	15,330
Total number of leases expiring | item	9
Percentage of annual base rent for expiring leases	20.00%
2023
RENTAL INCOME
Annual base rent for expiring leases | $	$ 444,280
Total square feet for expiring leases | ft²	13,591
Total number of leases expiring | item	6
Percentage of annual base rent for expiring leases	15.00%
2024
RENTAL INCOME
Annual base rent for expiring leases | $	$ 623,739
Total square feet for expiring leases | ft²	20,709
Total number of leases expiring | item	11
Percentage of annual base rent for expiring leases	21.00%
2025
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%
2029
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%