Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.22.1
Leases - Narrative (Details) - USD ($)
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Operating Leased Assets [Line Items]    
Operating lease, expense $ 400,000 $ 300,000
Operating lease, weighted average remaining lease term 3 years 2 months 12 days  
Operating lease, weighted average discount rate, percent 6.10%  
Rantigen, Germany, Administrative Office One    
Operating Leased Assets [Line Items]    
Operating lease, monthly payments $ 2,789  
Rantigen, Germany, Administrative Office Two    
Operating Leased Assets [Line Items]    
Operating lease, monthly payments 1,122  
Frankfurt, Germany Office    
Operating Leased Assets [Line Items]    
Operating lease, monthly payments $ 9,753