Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies

Schedule of future minimum lease payments due under operating leases

The future minimum lease payments due under the Company’s operating leases as of December 31, 2018 under ASC 840 were as follows (in thousands):

Year Ending December 31,
2019	$	888
2020		901
2021		915
2022		483
2023		—
	$	3,187

Schedule of components of lease expense

The components of the Company’s lease expense, which are recorded as a component of research and development expenses and general and administrative expenses in the consolidated statement of operations and comprehensive loss are as follows (in thousands):

	December 31,
	2019
Operating lease cost	$	900
Variable lease cost		390
Total lease cost	$	1,290
Weighted‑average remaining operating lease term (years)		2.6
Weighted‑average discount rate		8.52	%

Schedule of maturities of operating leases

Future minimum lease payments under non-cancelable operating leases under ASC 842 as of December 31, 2019 are as follows (in thousands):

Year Ending December 31,
2020	$	879
2021		777
2022		443
2023		—
2024		—
Present value adjustment		(208)
Total lease liabilities	$	1,891
Less: current lease liabilities		(640)
Long term lease liabilities	$	1,251