DESCRIPTION OF BUSINESS AND PRINCIPLES OF INTERIM STATEMENTS - Restricted Cash and Investment Securities (Details)	Jun. 30, 2020 USD ($) property	Mar. 19, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)
Restricted Cash
Restricted Cash	$ 29,709,862		$ 128,430,049	$ 59,035,150
Investment Securities
Derivatives fixed interest	2,391,529
Interest Rate Swap
Investment Securities
Derivatives fixed interest		$ 100,000,000
Escrow deposit to be reinvested through like-kind exchange structure
Restricted Cash
Restricted Cash	27,500,000
Restricted cash, escrow deposit related to land transactions
Restricted Cash
Restricted Cash	78,000
Restricted cash, escrow account in connection with sale of ground lease
Restricted Cash
Restricted Cash	100,000
Capital replacement reserve account
Restricted Cash
Restricted Cash	$ 286,000
Number of real estate properties in financing | property	6
Restricted cash, escrow for general tenant improvements
Restricted Cash
Restricted Cash	$ 1,700,000