Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Commitments And Contingencies Disclosure [Abstract]

Summary of Classification of Company's Lease Liabilities

Classification of the Company’s lease liabilities included on the its balance sheets at September 30, 2020 was as follows (in thousands):

	September 30,		December 31,
	2020		2019
Operating lease liabilities
Current portion included in accrued expenses and other current liabilities	$	471	$	410
Non-current portion included in other long-term liabilities		7,752		8,112
Total operating lease liabilities	$	8,223	$	8,522

Summary of Components of Lease Costs

The components of lease costs, which were included in operating expenses in the Company’s statements of operations and comprehensive loss were as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Operating lease cost	$	280	$	279	$	838	$	839
Variable cost		87		83		261		259
Total lease costs	$	367	$	362	$	1,099	$	1,098

Summary of Future Minimum Lease Payments Required Under Operating Leases

Future minimum lease payments required under operating leases include on the Company’s balance sheets at September 30, 2020 are as follows (in thousands):

Fiscal Year Ending December 31,
2020 (remaining 3 months)	$	313
2021		1,270
2022		1,308
2023		1,348
2024		1,388
Thereafter		6,916
Total minimum future lease payments (1)		12,543
Less:
Present value adjustment		4,320
Operating lease liabilities	$	8,223

^{(1) Excludes minimum future lease payments of $77.6 million related to the Company’s 2019 San Carlos Lease.}