ACCRUED AND OTHER LIABILITIES - Tenant Leasing Reserve Escrow (Details) - USD ($)	Feb. 21, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
ACCRUED AND OTHER LIABILITIES
Master Tenant Funded Incurred Related To Leasing Reserve Escrow	$ 2,250,000	$ 935,000
Eligible costs funded from escrow account	1,100,000
Cost incurred related to property acquisition	935,000
Base rent payments	128,000
Escrow balance	1,200,000	$ 3,148,997	$ 6,508,131	$ 5,882,767
Maximum rent payments	$ 1,000,000