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RELATED PARTY TRANSACTIONS - Other (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Chairman | General and administrative expense
Related Party Transactions
Quarterly fees paid	$ 78,250	$ 78,250	$ 74,500	$ 74,500
Vice Chairman | General and administrative expense
Related Party Transactions
Quarterly fees paid	31,300	$ 31,300	29,800	$ 29,800
Gould Investors L.P. | Real estate expenses
Related Party Transactions
Insurance expense recognized of amounts reimbursed to related party	$ 267,000		$ 281,000		$ 606,000	$ 562,000

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