RENTAL INCOME (Commercial Leases) (Details)	6 Months Ended
	Jun. 30, 2017 USD ($) ft² item
RENTAL INCOME
Annual base rent for expiring leases | $	$ 2,918,871
Total square feet for expiring leases | ft²	108,043
Total number of leases expiring | item	46
Percentage of annual base rent for expiring leases	100.00%
Through December 31, 2017
RENTAL INCOME
Annual base rent for expiring leases | $	$ 418,813
Total square feet for expiring leases | ft²	18,181
Total number of leases expiring | item	11
Percentage of annual base rent for expiring leases	14.00%
Through December 31, 2018
RENTAL INCOME
Annual base rent for expiring leases | $	$ 338,133
Total square feet for expiring leases | ft²	10,684
Total number of leases expiring | item	11
Percentage of annual base rent for expiring leases	12.00%
Through December 31, 2019
RENTAL INCOME
Annual base rent for expiring leases | $	$ 631,713
Total square feet for expiring leases | ft²	22,328
Total number of leases expiring | item	9
Percentage of annual base rent for expiring leases	22.00%
Through December 31, 2020
RENTAL INCOME
Annual base rent for expiring leases | $	$ 621,421
Total square feet for expiring leases | ft²	25,004
Total number of leases expiring | item	6
Percentage of annual base rent for expiring leases	21.00%
Through December 31, 2021
RENTAL INCOME
Annual base rent for expiring leases | $	$ 579,164
Total square feet for expiring leases | ft²	23,267
Total number of leases expiring | item	6
Percentage of annual base rent for expiring leases	20.00%
Through December 31, 2022
RENTAL INCOME
Annual base rent for expiring leases | $	$ 78,000
Total square feet for expiring leases | ft²	1,950
Total number of leases expiring | item	1
Percentage of annual base rent for expiring leases	2.00%
Through December 31, 2023
RENTAL INCOME
Annual base rent for expiring leases | $	$ 251,627
Total square feet for expiring leases | ft²	6,629
Total number of leases expiring | item	2
Percentage of annual base rent for expiring leases	9.00%