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RELATED PARTY TRANSACTIONS - Other (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Chairman | General and administrative expense
Related Party Transactions
Quarterly fees paid	$ 78,250	$ 74,500
Vice Chairman | General and administrative expense
Related Party Transactions
Quarterly fees paid	31,300	29,800
Gould Investors L.P. | Real estate expenses
Related Party Transactions
Insurance expense recognized of amounts reimbursed to related party	$ 339,000	$ 281,000

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