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License Agreements (Details) $ in Thousands, £ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 GBP (£) | Mar. 31, 2016 shares | Sep. 30, 2014 USD ($) shares | Sep. 30, 2020 USD ($) | Sep. 30, 2020 GBP (£) | Dec. 31, 2019 USD ($)
Schedule Of License Agreements |  |  |  |  |  |
Accrued license fees payable | £ 0.5 |  |  | $ 840 |  | $ 663
UCL Business plc |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Shares issued (in shares) | shares |  | 313,971 | 1,497,643 |  |  |
Payment of upfront fees (usd per share) | £ 1.5 |  | $ 300 |  |  |
UCL Business plc | Regulatory Approval |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Conditional payment, regulatory approval (gbp per share) |  |  |  |  | £ 35.5 |
UCL Business plc | Product Sales |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Conditional payment, regulatory approval (gbp per share) |  |  |  |  | 18.0 |
UCL Business plc | Product Sales | Minimum |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Conditional payment, regulatory approval (gbp per share) |  |  |  |  | 1.0 |
UCL Business plc | Product Sales | Maximum |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Conditional payment, regulatory approval (gbp per share) |  |  |  |  | 18.5 |
UCL Business plc | Net Sales Levels |  |  |  |  |  |
Schedule Of License Agreements |  |  |  |  |  |
Conditional payment, regulatory approval (gbp per share) |  |  |  |  | £ 51.0 |

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