DEBT - Summary of Mortgage Notes Payable (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount	$ 182,146,897
Carrying Value	180,914,339	$ 175,925,918
Fair Value	183,304,467	177,573,106
Mortgages
Debt Instrument [Line Items]
Principal amount	$ 182,146,897	$ 176,948,438

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	credit
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