Debt - Schedule of Company's Outstanding Debt (Detail) - USD ($)					12 Months Ended
		Feb. 23, 2018	Sep. 28, 2017	Jun. 28, 2017	Dec. 31, 2018		Aug. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Carrying Value					$ 205,919,928
Debt issuance costs, net					(2,184,030)			$ (700,362)
Total debt					203,735,898			52,299,638
JPM Mortgage Loan [Member] | Fayetteville Property [Member]
Debt Instrument [Line Items]
Carrying Value	[1]				$ 29,500,000			29,500,000
Debt instrument, initial interest rate				4.20%	4.20%	[1]
Maturity Date				Jul. 01, 2024	Jul. 01, 2024	[1]
Nationwide Loan [Member]
Debt Instrument [Line Items]
Debt instrument, initial interest rate			3.84%
Maturity Date			Oct. 01, 2024
Nationwide Loan [Member] | Tallahassee Property [Member]
Debt Instrument [Line Items]
Carrying Value	[1]				$ 23,500,000			$ 23,500,000
Debt instrument, initial interest rate	[1]				3.84%
Maturity Date	[1]				Oct. 01, 2024
Courtyard Freddie Mac Mortgage Loan [Member]
Debt Instrument [Line Items]
Carrying Value	[2]				$ 63,200,000
Debt instrument, initial interest rate					4.86%	[2]	4.86%
Maturity Date	[2]				Sep. 01, 2028
Utah Bridge Loan [Member]
Debt Instrument [Line Items]
Carrying Value	[3]				$ 12,195,108
Debt instrument, initial interest rate	[3]				6.51%
Maturity Date		Feb. 23, 2019			Apr. 30, 2020	[3]
Courtyard Initial Bridge Loan [Member]
Debt Instrument [Line Items]
Carrying Value	[4]				$ 27,000,000
Debt instrument, initial interest rate	[4]				6.53%
Maturity Date	[4]				Aug. 31, 2019
Courtyard Delayed Draw Commitment [Member]
Debt Instrument [Line Items]
Carrying Value	[4]				$ 3,619,820
Debt instrument, initial interest rate	[4]				6.51%
Maturity Date	[4]				Aug. 31, 2019
Freddie Mac Utah Loans [Member]
Debt Instrument [Line Items]
Carrying Value	[5]				$ 46,905,000
Debt instrument, initial interest rate		5.06%			5.06%	[5]
Maturity Date	[5]				Feb. 23, 2028

[1] Fixed rate debt with interest only payments due monthly and the principal balance due upon maturity.

[2] Fixed rate debt with interest only payments due monthly for the first four years, then principal and interest on a 30-year amortization schedule thereafter.

[3] Variable rate debt with interest only payments due monthly. The variable rate reflected in the table was the rate in effect as of December 31, 2018. On February 23, 2019, we elected to exercise an option available to us under the current loan agreement to extend the maturity date six months to August 23, 2019. On March 29, 2019, we amended the loan agreement to further extend the loan maturity date to April 30, 2020. Please see Note 11 – Subsequent Events for additional detail.

[4] Variable rate debt with interest only payments due monthly. The variable rate reflected in the table was the rate in effect as of December 31, 2018. The loan may be extended eight months from the maturity date upon the payment of a fee equal to 0.50% of the outstanding principal balance of the loan at the time of such extension and certain other terms are met, such as there has not been an event of default.

[5] Represents the aggregate of three separate mortgage loans for three properties acquired in Utah. Fixed rate debt with interest only payments due monthly for the first two years, then principal and interest on a 30-year amortization schedule thereafter.