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Summary of Significant Accounting Policies - Additional Information (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended
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May 31, 2024 shares | Nov. 30, 2020 shares | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Stockholders equity note stock split exchange ratio |  |  |  |  | 0.0288 |
Depreciation expense |  |  | $ 15,000 | $ 12,000 | $ 44,000 | $ 39,000
Lease term |  |  | 12 months |  | 12 months |
Company recorded expense |  |  | $ 5,000 |  | $ 8,000 |
Right-of-use asset or lease liability |  |  | 0 |  | 0 |
Rent expenses |  |  | 30,000 | 28,000 | 90,000 | 246,000
Impairment of long-lived assets |  |  | 0 | 0 | $ 0 | 0
Tax postion, Minimum percentage of tax benefit |  |  |  |  | 50.00% |
Variable interest entity ownership percentage |  |  |  |  | 5.00% |
Chief Financial Officer |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Warrants granted during the period | shares | 10,000 | 400,000 |  |  |  |
Private CalciMedica |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Costs and expenses related party |  |  | 57,000 | $ 94,000 | $ 243,000 | $ 440,000
ATM |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Deferred Offering Costs |  |  | $ 400,000 |  | $ 400,000 |

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