Summary of Significant Accounting Policies - Additional Information (Detail)		12 Months Ended
	Jul. 10, 2019	Dec. 31, 2022 USD ($) Segment Property shares	Dec. 31, 2021 USD ($) Property shares	Dec. 31, 2020 USD ($) shares
Summary of Significant Accounting Policies [Line Items]
Number of properties acquired | Property		0	0
Impairment loss on long-lived assets		$ 0	$ 0
Revenues		$ 34,430,834	34,270,414	$ 33,545,925
Days allowed for lease cancellation		30 days
Allowance for doubtful accounts		$ 70,000	70,000
Advertising cost		900,000	900,000	700,000
Other income related to stimulus grants		0	800,000	800,000
Debt issuance costs		$ 1,014,079	1,400,000
Offering cost as percentage of gross offering proceeds		1.00%
Maximum period for reimbursement of offering expenses		60 days
Due to affiliates		$ 1,403,388	2,637,266	1,904,913
Minimum percentage of ordinary taxable income to be distributed to stockholders		90.00%
Deferred tax asset, net operating loss		$ 5,000,000.0	3,600,000
Deferred tax assets related to other book temporary differences		300,000	300,000
Deferred tax liability, depreciation and other temporary book to tax differences		100,000	300,000
Deferred tax assets, net		5,200,000	3,600,000
Consolidated pretax net loss		$ (500,000)	$ (10,500,000)	$ (16,200,000)
Effective tax rate		0.00%	0.00%	0.00%
Uncertain tax positions		$ 0	$ 0
Unrecognized tax benefits, interest or penalties		$ 0	$ 0
Number of reportable segments | Segment		2
Unvested Restricted Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Unvested antidilutive shares | shares		6,250	7,500	8,125
Federal [Member]
Summary of Significant Accounting Policies [Line Items]
Net operating losses		$ 19,700,000
Open tax year		2018 2019 2020 2021
State [Member]
Summary of Significant Accounting Policies [Line Items]
Net operating losses		$ 25,600,000
Open tax year		2018 2019 2020 2021
State [Member] | Earliest Tax Year [Member]
Summary of Significant Accounting Policies [Line Items]
Net operating losses expiration year		2033
State [Member] | Latest Tax Year [Member]
Summary of Significant Accounting Policies [Line Items]
Net operating losses expiration year		2037
Advisor [Member]
Summary of Significant Accounting Policies [Line Items]
Maximum period for reimbursement of offering expenses		60 days
Due to affiliates				$ (600,000)
Select Capital Corporation (Dealer Manager) [Member]
Summary of Significant Accounting Policies [Line Items]
Due to affiliates		$ 0
Class Y and Z Common Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Offering cost as percentage of gross offering proceeds		1.00%
Minimum offering cost rate		1.00%
Maximum offering cost rate		1.00%
Class Y Common Stock [Member] | Select Capital Corporation (Dealer Manager) [Member]
Summary of Significant Accounting Policies [Line Items]
Sale commission fees percentage of proceed from Primary Offering	3.00%	3.00%
Dealer manager fees percentage of proceed from sales in primary portion of offering	3.00%	3.00%
Class T Common Stock [Member] | Select Capital Corporation (Dealer Manager) [Member]
Summary of Significant Accounting Policies [Line Items]
Sale commission fees percentage of proceed from Primary Offering		3.00%
In-Place Leases [Member]
Summary of Significant Accounting Policies [Line Items]
Gross amount of lease intangibles		$ 19,600,000	$ 22,300,000
Accumulated amortization of lease intangibles		19,600,000	22,300,000
Student Housing [Member]
Summary of Significant Accounting Policies [Line Items]
Revenues		4,522,789	8,090,778	7,391,722
Senior Housing [Member]
Summary of Significant Accounting Policies [Line Items]
Revenues		$ 29,908,045	26,179,636	$ 26,154,203
Geographic Concentration Risk [Member] | Rental Income [Member] | Arkansas [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		13.40%
Geographic Concentration Risk [Member] | Rental Income [Member] | Utah [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		39.10%
Geographic Concentration Risk [Member] | Rental Income [Member] | Oregon [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		47.50%
Revenue from Rights Concentration [Member] | Rental Income [Member] | Student Housing [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		0.00%
Revenue from Rights Concentration [Member] | Rental Income [Member] | Senior Housing [Member]
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage		0.00%
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Initial term of lease		12 months
Maximum [Member] | Advisor [Member]
Summary of Significant Accounting Policies [Line Items]
Percentage of organization and offering expenses funded by our advisor		1.00%
Maximum [Member] | Furniture, Fixtures and Equipment [Member]
Summary of Significant Accounting Policies [Line Items]
Standard depreciable life		7 years
Minimum [Member] | Class Y and Z Common Stock [Member]
Summary of Significant Accounting Policies [Line Items]
Percentage of organization and offering expenses funded by our advisor		1.00%
Minimum [Member] | Class Y and Z Common Stock [Member] | Advisor [Member]
Summary of Significant Accounting Policies [Line Items]
Percentage of organization and offering expenses expected at termination of public offering				1.00%
Percentage of receivable from advisor for organization and offering expenses incurred				1.00%
Minimum [Member] | Furniture, Fixtures and Equipment [Member]
Summary of Significant Accounting Policies [Line Items]
Standard depreciable life		3 years
Leasing and Related Revenues - Senior [Member]
Summary of Significant Accounting Policies [Line Items]
Revenues		$ 400,000	$ 300,000	$ 300,000