Subsequent Events - Additional Information (Detail) - USD ($)	May 12, 2020	Apr. 17, 2020	Mar. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Secured debt			$ 206,148,381	$ 208,418,809
Subsequent Event [Member]
Subsequent Event [Line Items]
Dealer manager agreement termination notice period		60 days
Subsequent Event [Member] | Freddie Mac Loan [Member] | Key Bank [Member]
Subsequent Event [Line Items]
Secured debt	$ 9,337,000
Subsequent Event [Member] | Freddie Mac Loan [Member] | Servicers [Member]
Subsequent Event [Line Items]
Descriptions of debt	Servicers have agreed to a forbearance of three (3) consecutive monthly installments of principal, interest, and certain deposits otherwise due (the “Forbearance Period Total”), effective with the monthly installment due on May 1, 2020. The Forbearance Period Total will be repaid without additional interest or prepayment premiums in no more than twelve (12) equal monthly installments, remitted together with each regularly scheduled monthly installment commencing with the first (1st) monthly installment due after the end of the Forbearance Period (the “Repayment Period”).