Leases - Schedule of Company's Operating and Finance Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finance lease liability
December 31, 2021	$ 60
December 31, 2022	60
December 31, 2023	60
December 31, 2024	0
December 31, 2025	0
Thereafter	0
Total undiscounted lease payments	180
Less: imputed interest	(23)
Total lease liabilities	157
Less: current portion	(49)	$ (62)
Non-current lease liabilities—December 31, 2020	108	146
Operating lease liability
December 31, 2021	2,161
December 31, 2022	2,289
December 31, 2023	2,341
December 31, 2024	2,394
December 31, 2025	2,448
Thereafter	7,904
Total undiscounted lease payments	19,537
Less: imputed interest	(7,572)
Total lease liabilities	11,965
Less: current portion	(659)	(556)
Non-current lease liabilities—December 31, 2020	$ 11,306	$ 447