Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 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 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 condensed consolidated statement of operations and comprehensive loss are as follows (in thousands):

	Three			Nine
	Months			Months
	Ended			Ended
	September 30,			September 30,
	2019			2019
Operating lease cost	$	219		$	669
Variable lease cost		91			282
Total lease cost	$	310		$	951
Weighted‑average remaining operating lease term (years)		2.9			2.9
Weighted‑average discount rate		8.50	%		8.50	%

Schedule of maturities of operating leases

The following table summarizes the maturities of the Company’s operating leases as of September 30, 2019 (in thousands):

Year Ending December 31,
2019	$	434
2020		848
2021		753
2022		443
2023		—
Present value adjustment		(460)
Total lease liabilities	$	2,018
Less: current lease liabilities		(602)
Long term lease liabilities	$	1,416