Real Estate Facilities and Real Estate Held for Sale - Summary of Activity in Real Estate Facilities (Detail) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Real estate facilities
Real estate facilities, beginning balance	$ 226,034,316	$ 270,002,163	$ 268,740,745
Real estate reclassified to held for sale		(45,049,915)
Real estate facilities, ending balance	228,006,554	226,034,316	270,002,163
Accumulated depreciation
Accumulated depreciation, beginning balance	(26,070,030)	(23,890,898)
Depreciation expense	(7,415,888)	(8,674,660)	(8,647,065)
Accumulated depreciation reclassified to held for sale		6,495,528
Accumulated depreciation, ending balance	(33,485,918)	(26,070,030)	(23,890,898)
Student Housing [Member]
Real estate facilities
Additions	211,583	203,195	187,673
Senior Housing [Member]
Real estate facilities
Additions	$ 1,760,655	$ 878,873	$ 1,073,745

Accumulated depreciation reclassified to held for sale.

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- Definition

Real estate reclassified to held for sale.

+ References

No definition available.

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- Definition

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Column F))
-URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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- Definition

Amount of increase in real estate investments related to improvements for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Footnote 4))
-URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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- Definition

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Amount of depreciation expense of real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Footnote 4))
-URI https://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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