Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.21.2
Commitments and Contingencies - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Other Commitments [Line Items]        
Operating lease, rent expense $ 426,000 $ 233,000 $ 867,000 $ 674,000
Amount of contingent liabilities payable $ 127,000   127,000  
Provision for contingent liabilities     $ 0  
Milan office        
Other Commitments [Line Items]        
Operating lease, option to renew true      
Operating lease, renewal term 6 years   6 years