Loans Payable - Mortgages Payables (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Unamortized issuance costs, net	$ (776,293)
Total mortgages payable, net	$ 59,542,902
Hanover Square Property
Debt Instrument [Line Items]
Interest Rate	4.90%
Ashley Plaza Property
Debt Instrument [Line Items]
Monthly Payment	$ 52,795
Interest Rate	3.75%
Brookfield Center Property
Debt Instrument [Line Items]
Monthly Payment		$ 22,876
Interest Rate	3.90%
Mortgages Payable
Debt Instrument [Line Items]
Unamortized issuance costs, net	$ (766,293)	(411,165)
Total mortgages payable, net	$ 56,700,902	$ 33,236,397
Mortgages Payable \| Franklin Square Property
Debt Instrument [Line Items]
Monthly Payment	Interest only	Interest only
Interest Rate	4.70%	4.70%
Maturity	October 2021	October 2021
Mortgages payable	$ 14,275,000	$ 14,275,000
Mortgages Payable \| Hampton Inn Property
Debt Instrument [Line Items]
Monthly Payment	Interest only	Interest only
Interest Rate	Variable	Variable
Maturity	November 2020	November 2020
Mortgages payable	$ 10,600,000	$ 10,600,000
Mortgages Payable \| Hanover Square Property
Debt Instrument [Line Items]
Monthly Payment	$ 51,993	$ 51,993
Interest Rate	4.90%	4.90%
Maturity	December 2027	December 2027
Mortgages payable	$ 8,592,195	$ 8,772,562
Mortgages Payable \| Ashley Plaza Property
Debt Instrument [Line Items]
Monthly Payment	Interest only	Interest only
Interest Rate	3.75%	3.75%
Maturity	September 2029	September 2029
Mortgages payable	$ 11,400,000
Mortgages Payable \| Clemson Best Western Property
Debt Instrument [Line Items]
Monthly Payment	Interest only	Interest only
Interest Rate	Variable	Variable
Maturity	October 2022	October 2022
Mortgages payable	$ 7,750,000
Mortgages Payable \| Brookfield Center Property
Debt Instrument [Line Items]
Monthly Payment	Interest only	Interest only
Interest Rate	3.90%	3.90%
Maturity	November 2029	November 2029
Mortgages payable	$ 4,850,000

Represents amounts of mortgage payable gross.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Amount, after accumulated amortization, of debt discount (premium).

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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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