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Collaborative Agreements (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 31, 2022 | Jan. 31, 2021 | Jun. 30, 2020 | Apr. 30, 2020 | Jan. 31, 2020 | Aug. 30, 2019 | Oct. 31, 2018 | Apr. 30, 2018 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2020 | Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 225,971 | $ 784,395 | $ 340,914 | $ 983,469 |  |
Grant funding liability |  |  |  |  |  |  |  |  | 3,704,781 |  | 3,704,781 |  |  | $ 2,475,031
Advaccine | Collaborative Arrangement, Product |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upfront payment received |  | $ 3,000,000 |  |  |  |  |  |  | 1,200,000 | 0 | $ 2,400,000 | 0 |  |
Additional revenue to be achieved |  | 200,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Royalty period |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Annual maintenance fee |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |
Annual maintenance period |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Agreement, number of days written notice before termination |  |  |  |  |  |  |  |  |  |  | 18 months |  |  |
Collaboration agreement, payment earned |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |
Advaccine | Collaborative Arrangement, Product | Revenue under collaborative research and development arrangements, including from affiliated entities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | $ 0 | 0 |  |
ApolloBio | Collaborative Arrangement, Product |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional revenue to be achieved |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 |  |  |
Royalty period |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Agreement, number of days written notice before termination |  |  |  |  |  |  |  |  |  |  | 90 days |  |  |
Period from effective date for termination |  |  |  |  |  |  |  |  |  |  | 1 year |  |  |
Coalition for Epidemic Preparedness Innovations | Collaborative Arrangement, Product |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement, funding to be received |  |  |  | $ 6,900,000 |  |  |  |  |  |  |  |  |  |
Coalition for Epidemic Preparedness Innovations | Collaborative Arrangement, Product | Lassa Fever and MERS Vaccine |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement, funding to be received |  |  |  |  |  |  |  | $ 56,000,000 |  |  |  |  |  |
Collaborative agreement, period to receive funding for research and development |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Funding received for research and development |  |  |  |  |  |  |  |  | 303,000 | 3,200,000 | $ 1,900,000 | 5,200,000 |  |
Deferred grant funding, from affiliate |  |  |  |  |  |  |  |  | 1,500,000 |  | 1,500,000 |  |  |
Coalition for Epidemic Preparedness Innovations | Collaborative Arrangement, Product | CELLECTRA 3PSP Proprietary Smart Device |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement, funding to be received |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |
Coalition for Epidemic Preparedness Innovations | Collaborative Arrangement, Product | INO-4800 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative agreement, funding to be received |  |  |  | $ 1,300,000 | $ 9,000,000 |  |  |  |  |  |  |  |  |
Funding received for research and development |  |  |  |  |  |  |  |  | 135,000 | 243,000 | 188,000 | 754,000 |  |
Grant funding liability |  |  |  |  |  |  |  |  | 2,200,000 |  | 2,200,000 |  |  |
Bill and Melinda Gates Foundation | Collaborative Arrangement, Product | DNA-Encoded Monoclonal Antibody Technology |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding received for research and development |  |  |  |  |  | $ 1,100,000 | $ 2,200,000 |  | 12,000 | 6,000 | 70,000 | 86,000 |  |
Grant funding liability |  |  |  |  |  |  |  |  | 86,000 |  | 86,000 |  |  |
Department of Defence | Collaborative Arrangement, Product |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contra-research and development expense |  |  |  |  |  |  |  |  | 0 | 2,900,000 | 0 | 6,100,000 |  |
Department of Defence | Collaborative Arrangement, Product | CELLECTRA 3PSP Proprietary Smart Device |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Funding received for research and development |  |  | $ 54,500,000 |  |  |  |  |  |  |  |  |  |  |
Department of Defence | Collaborative Arrangement, Product | CELLECTRA 2000 Device |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 0 | $ 625,000 | $ 0 | $ 625,000 |  |
Purchase price, procurement contract | $ 10,700,000 |  | $ 16,800,000 |  |  |  |  |  |  |  |  |  |  |

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