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Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
2021 (excluding the nine months ended September 31, 2021)	$ 163
2022	610
2023	737
2024	754
2025	775
Thereafter	933
Total future minimum lease payments	3,972
Less imputed interest	(687)
Total	3,285	$ 869
Sublease Income
2021 (excluding the nine months ended September 31, 2021)	(101)
2022	0
2023	0
2024	0
2025	0
Thereafter	0
Total future minimum lease payments	(101)
Net Operating Leases
2021 (excluding the nine months ended September 31, 2021)	62
2022	610
2023	737
2024	754
2025	775
Thereafter	933
Total future minimum lease payments	$ 3,871

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-Publisher FASB
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-SubTopic 20
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