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Related Party Transactions - Additional Information (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 05, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |
Reimbursement of monthly automobile expenses |  |  |  | $ 1,000 |  |
Automobile reimbursement amount |  |  |  | 8,198 | $ 1,878 |
Rental income |  | $ 2,968,263 | $ 2,970,875 | $ 8,857,845 | 8,542,221 |
Proceeds received on PPP loan forgiveness | $ 307,210 |  |  |  | 307,210 |
PEO |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Termination of notice period |  |  |  | 30 days |  |
Rental income |  | $ 1,200 | 4,800 | $ 3,600 | 14,400 |
PEO | Paycheck Protection Program Term Note ("PPP Note") |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Proceeds from Note |  |  |  |  |  | $ 486,602
PEO | Global Self Storage, Inc |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage ownership by affiliates, directors and employees |  | 8.20% |  | 8.20% |  |
Winco |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Aggregate administrative and support function expenses accrued and paid |  | $ 7,272 | 6,199 | $ 21,119 | 16,653 |
Allocated matching expense |  | 22,857 | 18,690 | 76,671 | 65,144 |
MMC and Winco | Related Party |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Reimbursements payable |  | 13,917 |  | 13,917 |  |
MMC | Related Party |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Aggregate compensation benefits accrued expense paid |  | $ 720,343 | $ 608,599 | $ 2,136,395 | $ 1,789,080 |

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