Commitments and Contingencies - Leases, Office and laboratory space in Building 900, Babraham Research Campus, Cambridge (Details) - Office and laboratory space in Building 900, Babraham Research Campus, Cambridge $ in Millions	Oct. 31, 2017 USD ($)
Leases
Annual rent	$ 0.5
Renewal term	5 years
Estimated service charges payable	$ 0.1
Security deposit	$ 0.6
Discounted percentage for present value of lease payments	7.75%