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Leases (Narrative) (Details)
$ in Millions
Sep. 30, 2021
USD ($)
ft²
Lessee, Lease, Description [Line Items]  
Present value of remaining lease payments, percent 7.42%
Weighted average remaining lease term 1 year 2 months 12 days
Future minimum sublease income under noncancelable operating subleases | $ $ 0.1
Office Space  
Lessee, Lease, Description [Line Items]  
Square feet of office space 25,500
Wet Laboratory and Office Space  
Lessee, Lease, Description [Line Items]  
Square feet of office space 14,200