v3.24.3

Significant Transactions (Details) |  |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 25, 2024 USD ($) | Jan. 01, 2023 | Sep. 16, 2022 USD ($) shares | Nov. 01, 2021 USD ($) $ / shares shares | Aug. 23, 2021 USD ($) shares | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 16, 2022 | Sep. 16, 2022 lease
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
General and administrative expenses |  |  |  |  |  | $ 2,801,000 | $ 3,547,000 |  |  |  |
PD-1 Asset Purchase Agreement | Otsuka Pharmaceutical | Intellectual Property |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of intellectual property | $ 1,000,000.0 |  |  |  |  |  |  |  |  |  |
Potential contingent payments related to sale of intellectual property | $ 52,500,000 |  |  |  |  |  |  |  |  |  |
The Purchase and Sale Agreement | College Station Investors |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Purchase price for Ground Lease Property |  |  |  | $ 28,750,000 |  |  |  |  |  |  |
Proceeds from sale of building |  |  |  | 28,000,000 |  |  |  |  |  |  |
Base rent expense |  |  |  | $ 151,450 |  |  |  |  |  |  |
Interest rate on lease (percentage of facility's market value) |  |  |  | 6.50% |  |  |  |  |  |  |
The Credit Agreement | Woodforest National Bank |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount borrowed |  |  |  | $ 22,375,000 |  |  |  |  |  |  |
The Warrant | Bryan Capital | iBio Common Stock |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Warrants, shares issued | shares |  |  |  | 2,579 |  |  |  |  |  |  |
Exercise price per share of warrants | $ / shares |  |  |  | $ 665 |  |  |  |  |  |  |
Warrants issued and exercisable | shares |  |  |  | 579 |  |  |  |  |  |  |
Value of exercisable warrants |  |  |  | $ 217,255 |  |  |  |  |  |  |
Collaboration, Option and License Agreement | RubrYc Therapeutics |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Collaboration and license agreement, agreement term |  |  |  |  | 5 years |  |  |  |  |  |
Collaboration and license agreement, royalty payment term |  |  |  |  | 10 years |  |  |  |  |  |
Stock Purchase Agreement | RubrYc Therapeutics | Series A-2 Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares purchased in transaction | shares |  |  |  |  | 2,864,345 |  |  |  |  |  |
Value of shares purchased in transaction |  |  |  |  | $ 7,500,000 |  |  |  |  |  |
Asset Purchase Agreement | RubrYc Therapeutics |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Liability for contingent consideration |  |  | $ 5,000,000 |  |  |  |  |  |  |  |
Cash advances to RubrYc to support operations |  |  | 484,000 |  |  |  |  |  |  |  |
Transaction costs |  |  | 208,000 |  |  |  |  |  |  |  |
Impairment of investment in RubrYc |  |  |  |  |  |  |  |  | $ 1,760,000 |  |
Impairment of current prepaid expense |  |  |  |  |  |  |  |  | 288,000 |  |
Impairment of noncurrent prepaid expense |  |  |  |  |  |  |  |  | $ 864,000 |  |
Number of equipment leases assumed in asset acquisition |  |  |  |  |  |  |  |  |  | 3 | 3
Financing lease liabilities assumed in acquisition |  |  | $ 814,000 |  |  |  |  |  |  |  |
Asset Purchase Agreement | RubrYc Therapeutics | iBio Common Stock |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued per agreement | shares |  |  | 5,117 |  |  |  |  |  |  |  |
Fair value of shares issued in agreement |  |  | $ 1,000,000 |  |  |  |  |  |  |  |
Fair value of shares issued and subject to lockup period |  |  | $ 650,000 |  |  |  |  |  |  |  |
Separation Agreement and General Release | Mr. Thomas F. Isett, Former Chief Executive Officer |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Period of bi-monthly installments of current base salary |  | 24 months |  |  |  |  |  |  |  |  |
Period of bi-monthly installments of target bonus |  | 24 months |  |  |  |  |  |  |  |  |
Maximum period for coverage of health insurance |  | 18 months |  |  |  |  |  |  |  |  |
COBRA subsidy period |  | 18 months |  |  |  |  |  |  |  |  |
Contingent lump-sum severance payment, expressed as a multiple of monthly COBRA subsidy |  | 6 |  |  |  |  |  |  |  |  |
General and administrative expenses |  |  |  |  |  |  |  | $ 2,130,000 |  |  |
Accrued expenses |  |  |  |  |  | $ 300,000 |  |  |  |  |

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