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Related Party Transactions - Summary of Related Party Carrying Value of Investments In Advances (Detail) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Related Party Transaction [Line Items] |  |  |
Total investments in and advances |  | $ 34,390,866 | $ 62,371,167
SSGT III OP |  |  |
Related Party Transaction [Line Items] |  |  |
Receivables |  | 628,710 | 156,082
Total investments in and advances |  | 8,290,688 | 22,320,769
SSGT III OP | SSGT III Mezzanine Loan |  |  |
Related Party Transaction [Line Items] |  |  |
Debt | [1] | 4,000,000 | 17,500,000
SSGT III OP | SSGT III OP Units and SLP |  |  |
Related Party Transaction [Line Items] |  |  |
Equity |  | 3,661,978 | 4,664,687
SST VI |  |  |
Related Party Transaction [Line Items] |  |  |
Receivables |  | 5,861,326 | 1,828,990
Total investments in and advances |  | 26,100,177 | 40,050,400
SST VI | SST VI Mezzanine Loan |  |  |
Related Party Transaction [Line Items] |  |  |
Debt |  |  | 35,000,000
SST VI | SST VI Note |  |  |
Related Party Transaction [Line Items] |  |  |
Debt |  | 15,000,000 |
SST VI | SST VI OP Units and SLP |  |  |
Related Party Transaction [Line Items] |  |  |
Equity |  | 1,932,357 | $ 3,221,410
SST VI | SST VI Class C Subordinated Units |  |  |
Related Party Transaction [Line Items] |  |  |
Equity |  | $ 3,306,494 |
[1] | As of December 31, 2023, $1.5 million was available to be drawn on the SSGT III Mezzanine Loan.

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