Capital lease obligation - Schedule of Future Minimum Lease Payments Required Under The Lease (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Leases [Abstract]
2021 (remainder)	$ 551
2022	734
2023	734
2024	514
2025	226
Total	2,759
Less payment amount allocated to interest	226
Present value of capital lease obligation	2,533
Current portion of capital lease obligation	633	$ 626
Long-term portion of capital lease obligation	1,900	$ 2,061
Total capital lease obligation	$ 2,533

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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