Schedule III - Real Estate and Related Depreciation (Details)	Dec. 31, 2021 USD ($) ft²
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	831,191
Initial cost, Land	$ 6,122,065
Initial cost, Buildings & Improvements	53,470,167
Costs Subsequent to Acquisition	6,464,347
Gross Carrying Amount, Land	6,122,065
Gross Carrying Amount, Buildings & Improvements	59,934,514
Total	66,056,579
Accumulated Depreciation	$ 7,811,436
Clinton, CT
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	30,408	[1]
Initial cost, Land	$ 356,040	[1]
Initial cost, Buildings & Improvements	3,108,285	[1]
Costs Subsequent to Acquisition	31,585	[1]
Gross Carrying Amount, Land	356,040	[1]
Gross Carrying Amount, Buildings & Improvements	3,139,870	[1]
Total	3,495,910	[1]
Accumulated Depreciation	$ 388,093	[1]
Bolingbrook, IL
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	113,700	[2]
Initial cost, Land	$ 633,914	[2]
Initial cost, Buildings & Improvements	5,491,409	[2]
Costs Subsequent to Acquisition	2,472,375	[2]
Gross Carrying Amount, Land	633,914	[2]
Gross Carrying Amount, Buildings & Improvements	7,963,784	[2]
Total	8,597,698	[2]
Accumulated Depreciation	$ 1,214,464	[2]
Dolton, IL
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	86,590	[2]
Initial cost, Land	$ 614,413	[2]
Initial cost, Buildings & Improvements	5,227,313	[2]
Costs Subsequent to Acquisition	17,411	[2]
Gross Carrying Amount, Land	614,413	[2]
Gross Carrying Amount, Buildings & Improvements	5,244,724	[2]
Total	5,859,137	[2]
Accumulated Depreciation	$ 835,749	[2]
McCordsville, IN
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	76,360	[1]
Initial cost, Land	$ 770,000	[1]
Initial cost, Buildings & Improvements	6,776,000	[1]
Costs Subsequent to Acquisition	479,652	[1]
Gross Carrying Amount, Land	770,000	[1]
Gross Carrying Amount, Buildings & Improvements	7,255,652	[1]
Total	8,025,652	[1]
Accumulated Depreciation	$ 913,388	[1]
Merrillville, IN
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	80,970	[2]
Initial cost, Land	$ 597,229	[2]
Initial cost, Buildings & Improvements	5,104,011	[2]
Costs Subsequent to Acquisition	464,538	[2]
Gross Carrying Amount, Land	597,229	[2]
Gross Carrying Amount, Buildings & Improvements	5,568,549	[2]
Total	6,165,778	[2]
Accumulated Depreciation	$ 859,562	[2]
Millbrook, NY
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	24,472	[1]
Initial cost, Land	$ 423,960	[1]
Initial cost, Buildings & Improvements	2,900,895	[1]
Costs Subsequent to Acquisition	2,343,125	[1]
Gross Carrying Amount, Land	423,960	[1]
Gross Carrying Amount, Buildings & Improvements	5,244,020	[1]
Total	5,667,980	[1]
Accumulated Depreciation	$ 464,274	[1]
Rochester, NY
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	68,131	[2]
Initial cost, Land	$ 571,583	[2]
Initial cost, Buildings & Improvements	5,227,630	[2]
Costs Subsequent to Acquisition	33,415	[2]
Gross Carrying Amount, Land	571,583	[2]
Gross Carrying Amount, Buildings & Improvements	5,261,045	[2]
Total	5,832,628	[2]
Accumulated Depreciation	$ 795,872	[2]
Lima, OH
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	96,883	[1]
Initial cost, Land	$ 530,000	[1]
Initial cost, Buildings & Improvements	4,664,000	[1]
Costs Subsequent to Acquisition	240,444	[1]
Gross Carrying Amount, Land	530,000	[1]
Gross Carrying Amount, Buildings & Improvements	4,904,444	[1]
Total	5,434,444	[1]
Accumulated Depreciation	$ 635,353	[1]
Sadsburyville, PA
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	78,857	[2]
Initial cost, Land	$ 462,749	[2]
Initial cost, Buildings & Improvements	5,146,579	[2]
Costs Subsequent to Acquisition	34,833	[2]
Gross Carrying Amount, Land	462,749	[2]
Gross Carrying Amount, Buildings & Improvements	5,181,412	[2]
Total	5,644,161	[2]
Accumulated Depreciation	$ 825,155	[2]
West Henrietta, NY
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	55,550	[1]
Initial cost, Land	$ 628,251	[1]
Initial cost, Buildings & Improvements	5,229,481	[1]
Costs Subsequent to Acquisition	262,333	[1]
Gross Carrying Amount, Land	628,251	[1]
Gross Carrying Amount, Buildings & Improvements	5,491,814	[1]
Total	6,120,065	[1]
Accumulated Depreciation	$ 170,667	[1]
SSG Summerville I LLC | Summerville, SC
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	76,410	[2],[3]
Initial cost, Land	$ 345,160	[2],[3]
Initial cost, Buildings & Improvements	2,989,159	[2],[3]
Costs Subsequent to Acquisition	67,078	[2],[3]
Gross Carrying Amount, Land	345,160	[2],[3]
Gross Carrying Amount, Buildings & Improvements	3,056,237	[2],[3]
Total	3,401,397	[2],[3]
Accumulated Depreciation	$ 460,354	[2],[3]
SSG Summerville II LLC | Summerville, SC
Real Estate And Accumulated Depreciation [Line Items]
Square Footage | ft²	42,860	[2],[4]
Initial cost, Land	$ 188,766	[2],[4]
Initial cost, Buildings & Improvements	1,605,405	[2],[4]
Costs Subsequent to Acquisition	17,558	[2],[4]
Gross Carrying Amount, Land	188,766	[2],[4]
Gross Carrying Amount, Buildings & Improvements	1,622,963	[2],[4]
Total	1,811,729	[2],[4]
Accumulated Depreciation	$ 248,505	[2],[4]

[1] This property is held as collateral under the Revolver. There was no outstanding balance under the Revolver as of December 31, 2021.

[2] This property is held as collateral under the Loan Agreement with an outstanding balance of $18,335,407 as of December 31, 2021

[3] SSG Summerville I LLC.

[4] SSG Summerville II LLC