Note 3 - Procurement Contracts and Research Agreements (Details Textual) $ in Millions | | | | | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended | | | |
Feb. 29, 2024 USD ($) | Sep. 28, 2022 USD ($) | May 12, 2022 USD ($) | Sep. 10, 2018 USD ($) | Dec. 31, 2023 USD ($) | Feb. 29, 2024 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Oct. 31, 2023 | Dec. 31, 2021 USD ($) | Jul. 31, 2019 USD ($) |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | $ 0.1 | | | | |
The 19C BARDA Contract [Member] | | | | | | | | | | | | | | | |
Number of Courses to Be Delivered | | | | 1,488,000 | | | | | | | | | 106,000 | | |
Number of Vials in a Course | | | | 14 | | | | | | | | | 28 | | |
Government Contract, Value of Award | | | | | $ 602.5 | | $ 602.5 | | | | 602.5 | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities | | | | $ 51.7 | 51.7 | | 51.7 | | | | 51.7 | | | | |
Government Contract Value Related To Exercised Options | | | | | | | | | | | 407.1 | | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options | | | | | | | | | | | $ 143.7 | | | | |
Base Period of Performance, Exercise of Options, Term (Year) | | | | | | | | | | | 10 years | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities, Delivery of Courses | | | | $ 11.1 | | | | | | | | | | | |
Government Contract, Base Period, Number of Deliveries | | | | 35,700 | | | | | | | | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities, Manufacture of Courses | | | | $ 8 | | | | | | | | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities, Advanced Development | | | | 32 | | | | | | | | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities, Supportive Procurement Activities | | | | 0.6 | | | | | | | | | | | |
Proceeds from Delivery of Courses | | | | | | | | | | | $ 11.1 | | | | |
Number of Courses Delivered | | | | | | | | | | | 35,700 | | | | |
Proceeds from Other Base Period Activities | | | | | | | | | | | $ 22.1 | | | | |
Government Contract, Value, Payments Remaining Related to Exercised Options | | | | | | | | | | | 407.1 | | | | |
Government Contract, Value of Unexercised Options, Supportive Procurement Activities | | | | | 5.6 | | 5.6 | | | | 5.6 | | | | |
The 19C BARDA Contract [Member] | Transferred over Time [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | 97.9 | | | | |
The 19C BARDA Contract [Member] | Transferred at Point in Time [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | | $ 7.2 | | | |
The 19C BARDA Contract [Member] | IV TPOXX [Member] | | | | | | | | | | | | | | | |
Number of Courses to Be Delivered | | | | | | | | | | | | | 10,000 | | |
Government Contract, Value, Payments Related to Exercised Options, Funding of Post-Marketing Activities | | | | | 3.6 | | 3.6 | | | | 3.6 | | | | |
Government Contract, Value, Payments Related to Unexercised Options, Delivery of Courses | | | | | 112.5 | | 112.5 | | | | 112.5 | | | | |
Government Contract, Value, Payments Related to Unexercised Options, Funding of Post-Marketing Activities | | | | | $ 10.2 | | $ 10.2 | | | | $ 10.2 | | | | |
Number of Manufacturing Steps | | | | | 2 | | 2 | | | | 2 | | | | |
The 19C BARDA Contract [Member] | IV BDS [Member] | | | | | | | | | | | | | | | |
Government Contract, Base Period, Value of Award for Delivery and Support Activities, Manufacture of Courses | | | | $ 3.2 | | | | | | | | | | | |
Proceeds from the Manufacture of Courses | | | | | | | | | | | $ 3.2 | | | | |
Proceeds from the Delivery of Courses | | | | | | | | | | | 4.3 | | | | |
Contract with Customer, Liability, Total | | | | | $ 20.5 | | $ 20.5 | | | | $ 20.5 | | | $ 3.2 | |
Government Contract, Number of Options for Manufacture of Product | | | | | 3 | | 3 | | | | 3 | | | | |
Government Contract, Courses Manufactured Upon Exercise of Options | | | | | 32,000 | | 32,000 | | | | 32,000 | | | | |
The 19C BARDA Contract [Member] | IV FDP Containing IV BDS [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Total | | | | | $ 20.4 | | $ 20.4 | | | | $ 20.4 | 0.3 | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | | 2.9 | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options, Manufacture of Courses | | | | | $ 51.2 | | $ 51.2 | | | | $ 51.2 | | | | |
The 19C BARDA Contract [Member] | Oral TPOXX [Member] | | | | | | | | | | | | | | | |
Number of Courses to Be Delivered | | | | | 1,100,000 | | 1,100,000 | | | | 1,100,000 | | | | |
Government Contract, Value, Payments Related to Exercised Options, Delivery of Courses | | | | | $ 337.7 | | $ 337.7 | | | | $ 337.7 | | | | |
Government Contract, Value, Payments Related to Exercised Options, Funding of Post-Marketing Activities | | | | | 14.6 | | 14.6 | | | | 14.6 | | | | |
Government Contract, Total Amount of Exercised Options, Delivery of Materials | | | | | | | 97.9 | | | | 323 | | | | |
Proceeds from Payments Received for Post-marketing Activities | | | | | | | | | | | 7.9 | | | | |
The 19C BARDA Contract [Member] | Oral TPOXX [Member] | Subsequent Event [Member] | | | | | | | | | | | | | | | |
Government Contract, Total Amount of Exercised Options, Delivery of Materials | | | | | | $ 15 | | | | | | | | | |
The 19C BARDA Contract [Member] | IV FDP [Member] | | | | | | | | | | | | | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options, Manufacture of Courses | | | | | $ 25.6 | | $ 25.6 | | | | $ 25.6 | | | | |
Government Contract, Number of Options for Manufacture of Product | | | | | 3 | | 3 | | | | 3 | | | | |
Government Contract, Courses Manufactured Upon Exercise of Options | | | | | 32,000 | | 32,000 | | | | 32,000 | | | | |
The 19C BARDA Contract [Member] | Maximum [Member] | | | | | | | | | | | | | | | |
Number of Courses to Be Delivered | | | | 212,000 | | | | | | | | | | | |
IC BARDA [Member] | Transferred over Time [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | $ 3 | 6.2 | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options, Manufacture of Courses | | | | | $ 10.2 | | $ 10.2 | | | | 10.2 | | | | |
Government Contract, Value, Payments Related to Unexercised Options, Funding of Post-Marketing Activities | | | | | 25.6 | | 25.6 | | | | 25.6 | | | | |
U.S. Department of Defense (“DoD”) [Member] | Oral TPOXX [Member] | | | | | | | | | | | | | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options | | $ 5.5 | $ 3.8 | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | 5.5 | $ 5.1 | | $ 3.6 | | | | | |
Government Contract, Value Ordered | | $ 5.1 | $ 3.6 | | | | | | | | | | | | |
Government Contract, Value, Option Exercised | | | | | | | | $ 5.5 | $ 3.8 | | | | | | |
U.S. Department of Defense (“DoD”) [Member] | Oral TPOXX [Member] | Subsequent Event [Member] | | | | | | | | | | | | | | | |
Government Contract, Value Ordered | $ 1 | | | | | 1 | | | | | | | | | |
International Procurement [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | 21.3 | 71 | | | |
International Procurement [Member] | Oral TPOXX [Member] | | | | | | | | | | | | | | | |
Government Contract, Value of Award | | | | | | | | | | | | 77 | | | |
Government Contract, Value, Payments Currently Specified as Unexercised Options | | | | | 6.7 | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | | 71 | | | |
Government Contract, Value Ordered | | | | | 21.3 | | 21.3 | | | | 21.3 | | | | |
International Procurement [Member] | Oral TPOXX [Member] | CANADA | | | | | | | | | | | | | | | |
Government Contract, Value of Award | | | | | | | | | | | | 39 | | | |
International Procurement [Member] | Oral TPOXX [Member] | Europe, Asia Pacific and the Middle East [Member] | | | | | | | | | | | | | | | |
Government Contract, Value of Award | | | | | | | | | | | | 38 | | | |
International Procurement [Member] | Oral TPOXX [Member] | Scenario, Plan [Member] | | | | | | | | | | | | | | | |
Government Contract, Value of Award | | | | | $ 14 | | $ 14 | | | | 14 | | | | |
International Procurement [Member] | Oral TPOXX [Member] | Subsequent Event [Member] | | | | | | | | | | | | | | | |
Government Contract, Value of Award | 18 | | | | | 18 | | | | | | | | | |
Government Contract, Delivery of Material | $ 7 | | | | | 7 | | | | | | | | | |
Percentage of Deliveries Completed | 95% | | | | | | | | | | | | | | |
Canadian Contract [Member] | Subsequent Event [Member] | Meridian Medical Technologies [Member] | | | | | | | | | | | | | | | |
Government Contract, Delivery of Material | $ 0.7 | | | | | $ 0.7 | | | | | | | | | |
The PEP Label Expansion R & D Contract with the Department of Defense [Member] | | | | | | | | | | | | | | | |
Contract with Customer, Liability, Revenue Recognized | | | | | | | | | | | $ 6.4 | $ 17.9 | | | |
Government Contract, Increased Value of Award | | | | | | | | | | | | | | | $ 27 |