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Commitments and Contingencies - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 15, 2023 EUR (€) ft² | Mar. 31, 2025 USD ($) | Jan. 31, 2025 AUD ($) | Apr. 30, 2024 USD ($) | May 31, 2022 AUD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) licenseAgreement operatingLease performance_obligation | Sep. 30, 2024 USD ($) | May 31, 2025 USD ($)
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of operating leases | operatingLease |  |  |  |  |  |  |  | 5 |  |
Total operating lease cost |  |  |  |  |  | $ 23,300 | $ 18,700 | $ 51,300 | $ 57,300 |
Number of performance obligations | performance_obligation |  |  |  |  |  |  |  | 1 |  |
Number of license agreements | licenseAgreement |  |  |  |  |  |  |  | 5 |  |
Revenues |  |  |  |  |  | $ 0 | $ 0 | $ 0 | 16,020,000 |
Proceeds from Line of Credit |  |  |  |  |  |  |  | 2,750,000 | 0 |
Repayments of lines of credit |  |  |  |  |  |  |  | 2,750,000 | $ 0 |
Revolving Credit Facility | UBS |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit |  | $ 10,000,000 |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 1.50% |  |  |  |  |  |  |  |
Proceeds from Line of Credit |  |  |  |  |  |  |  | 2,800,000 |  |
Repayments of lines of credit |  |  |  |  |  |  |  | $ 2,800,000 |  |
Grant |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  | $ 20,000 |  |  |  |  |  |
Senju Pharmaceutical Co., Ltd | KIO-301 |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payment earned |  |  |  |  |  |  |  |  |  | $ 1,250,000
Additional option fee |  |  |  |  |  |  |  |  |  | 500,000
Upfront maximum payment amount |  |  |  |  |  |  |  |  |  | $ 110,750,000
Minimum |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Remaining lease term |  |  |  |  |  | 1 year 3 months 18 days |  | 1 year 3 months 18 days |  |
Maximum |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Remaining lease term |  |  |  |  |  | 3 years 1 month 6 days |  | 3 years 1 month 6 days |  |
New Encinitas Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payments for rent |  | $ 8,400 |  |  |  |  |  |  |  |
Annual rental payment increase |  | 4.00% |  |  |  |  |  |  |  |
Rent abatement period |  | 3 months |  |  |  |  |  |  |  |
Security deposit |  | $ 9,400 |  |  |  |  |  |  |  |
Tenant improvements |  | $ 72,800 |  |  |  |  |  |  |  |
Lease term |  | 3 years 3 months |  |  |  |  |  |  |  |
Perth and Brisbane Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payments for rent |  |  | $ 8,900 |  |  |  |  |  |  |
Security deposit |  |  | $ 44,000.0 |  |  |  |  |  |  |
Lease term |  |  | 2 years |  |  |  |  |  |  |
Brisbane Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Rent abatement period |  |  | 2 months |  |  |  |  |  |  |
Perth Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Rent abatement period |  |  | 3 months |  |  |  |  |  |  |
Vienna Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payments for rent | € | € 1,300 |  |  |  |  |  |  |  |  |
Security deposit | € | € 4,500 |  |  |  |  |  |  |  |  |
Lease term | 5 years |  |  |  |  |  |  |  |  |
Area of land | ft² | 910 |  |  |  |  |  |  |  |  |
Adelaide Lease |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payments for rent |  |  |  |  | $ 2,200 |  |  |  |  |
Lease term |  |  |  |  | 12 months |  |  |  |  |
Termination period |  |  |  |  | 90 days |  |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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