Leases (Details) $ in Thousands		1 Months Ended		12 Months Ended
	Jan. 01, 2021	Dec. 31, 2018 ft²	Jun. 30, 2018 ft²	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease square feet of office space | ft²		13,000	15,000
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Lessee, Operating Lease, Existence of Option to Terminate [true false]	true
Cost operating lease | $				$ 1,197	$ 686	$ 1,051
Weighted average remaining lease term				2 years 6 months
Weighted-average discount rate for operating leases				3.80%
Minimum
Lessee, Lease, Description [Line Items]
Lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease terms	3 years