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MORTGAGE NOTES PAYABLE (Scheduled Principal Payments of Mortgage Notes Payable) (Details)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
2020	$ 29,166,847
2021	16,892,476
2022	18,472,632
2023	1,783,291
2024	24,813,868
Thereafter	52,329,934
Total	143,459,048
Office/Industrial Properties
Debt Instrument [Line Items]
2020	16,871,952
2021	4,960,217
2022	10,055,657
2023	1,783,291
2024	24,813,868
Thereafter	52,329,934
Total	110,814,919
Model Home Properties
Debt Instrument [Line Items]
2020	12,294,895
2021	11,932,259
2022	8,416,975
2023	0
2024	0
Thereafter	0
Total	$ 32,644,129

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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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