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Commitments and Contingencies - Facility lease - (Details)
Oct. 31, 2020
USD ($)
ft²
Commitments and Contingencies  
Area of Land | ft² 15,129
Leasehold improvements may be reimbursed $ 378,000
Initial Term 5 years
Renewal Term 3 years
Amount of letter of credit as security deposit to the Landlord $ 500,000