Annual report pursuant to Section 13 and 15(d)

Revenue - Collaboration Agreement - The GSK Collaboration and License Agreement (Details)

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Revenue - Collaboration Agreement - The GSK Collaboration and License Agreement (Details) - GSK Collaboration And License Agreement
1 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
Dec. 31, 2019
USD ($)
Dec. 19, 2022
USD ($)
Dec. 19, 2022
GBP (£)
Revenue        
Amount of development milestone achieved   $ 3,200,000    
Milestone payments received $ 4,200,000      
Payment by GSK due to termination of collaboration | £       £ 5,000,000
Aggregate transaction price of the contract modification     $ 6,500,000  
Payment on contract modification     (6,100,000) £ 5,000,000
Amount of remaining deferred income under the collaboration that had not been recognized as revenue     $ 400,000