Summary of Significant Accounting Policies - Property and Purpose of Reserves (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves	$ 893,078	$ 1,267,470
Clemson Best Western Property | Improvements [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves		50,012
Clemson Best Western Property | Furniture, fixtures and equipment
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves		275,109
Franklin Square Property | Leasing costs [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves	845,765	700,000
Brookfield Center Property. | Maintenance and leasing cost reserve
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves	$ 47,313	92,349
Greenbrier Business Center Property | Capital reserve [Member]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Capital property reserves		$ 150,000