DEBT - Maturities of Long-term Debt (Details) - USD ($)	Sep. 30, 2020	Apr. 20, 2020
Debt Instrument [Line Items]
October through December 2020	$ 1,116,782
2021	25,665,222
2022	20,872,760
2023	25,642,334
2024	24,597,822
2025	30,781,081
Thereafter	57,958,541
Total principal	186,634,542
Plus unamortized mortgage premium, net of unamortized discount	470,411
Less unamortized deferred financing costs	(1,609,107)
Net principal	185,495,846
Short-term Notes Payable
Debt Instrument [Line Items]
October through December 2020	527,000
2021	0
2022	0
2023	0
2024	0
2025	0
Thereafter	0
Total principal	527,000
Plus unamortized mortgage premium, net of unamortized discount	0
Less unamortized deferred financing costs	0
Net principal	527,000
Short-term Notes Payable \| Loan Agreement and Promissory Note, Paycheck Protection Program, CARES Act
Debt Instrument [Line Items]
Debt instrument, face amount		$ 517,000
Unsecured Credit Facility
Debt Instrument [Line Items]
October through December 2020	0
2021	6,000,000
2022	0
2023	0
2024	0
2025	0
Thereafter	0
Total principal	6,000,000
Plus unamortized mortgage premium, net of unamortized discount	0
Less unamortized deferred financing costs	(32,271)
Net principal	5,967,729
Mortgage Notes Payable
Debt Instrument [Line Items]
October through December 2020	589,782
2021	19,665,222
2022	20,872,760
2023	25,642,334
2024	24,597,822
2025	30,781,081
Thereafter	57,958,541
Total principal	180,107,542
Plus unamortized mortgage premium, net of unamortized discount	470,411
Less unamortized deferred financing costs	(1,576,836)
Net principal	$ 179,001,117

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.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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