RENTAL INCOME (Commercial Leases) (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) ft² item
RENTAL INCOME
Annual base rent for expiring leases | $	$ 2,950,315
Total square feet for expiring leases | ft²	107,524
Total number of leases expiring | item	48
Percentage of annual base rent for expiring leases	100.00%
Through March 31, 2020
RENTAL INCOME
Annual base rent for expiring leases | $	$ 213,099
Total square feet for expiring leases | ft²	11,062
Total number of leases expiring | item	12
Percentage of annual base rent for expiring leases	7.00%
Through March 31, 2021
RENTAL INCOME
Annual base rent for expiring leases | $	$ 887,955
Total square feet for expiring leases | ft²	37,817
Total number of leases expiring | item	10
Percentage of annual base rent for expiring leases	30.00%
Through March 31, 2022
RENTAL INCOME
Annual base rent for expiring leases | $	$ 538,983
Total square feet for expiring leases | ft²	17,038
Total number of leases expiring | item	7
Percentage of annual base rent for expiring leases	18.00%
Through March 31, 2023
RENTAL INCOME
Annual base rent for expiring leases | $	$ 405,072
Total square feet for expiring leases | ft²	12,546
Total number of leases expiring | item	6
Percentage of annual base rent for expiring leases	14.00%
Through March 31, 2024
RENTAL INCOME
Annual base rent for expiring leases | $	$ 747,762
Total square feet for expiring leases | ft²	24,903
Total number of leases expiring | item	11
Percentage of annual base rent for expiring leases	25.00%
Through March 31, 2025
RENTAL INCOME
Annual base rent for expiring leases | $	$ 14,994
Total square feet for expiring leases | ft²	308
Total number of leases expiring | item	1
Percentage of annual base rent for expiring leases	1.00%
Through March 31, 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%