Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Remaining term of operating leases (in years)	4 years
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021	$ 836
2022	687
2023	311
2024	81
2025 and thereafter	0
Total	1,915
Operating lease, expense	$ 1,900	$ 2,100
Total rental expense under operating leases			$ 1,900