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Summary of significant accounting policies, Property, plant and equipment (Details)
12 Months Ended
Dec. 31, 2021
IT Equipment [Member]  
Estimated useful life [Abstract]  
Estimated useful life 3 years
Laboratory Equipment [Member]  
Estimated useful life [Abstract]  
Estimated useful life 5 years
Leasehold Improvements/Furniture [Member]  
Estimated useful life [Abstract]  
Estimated useful life 5 years