In December 2020, the Company entered into a 48-month operating lease agreement to lease office space in San Mateo, California. The lease commenced on April 30, 2021 and expires on April 30, 2025.

The Company also has an operating lease agreement to lease the office space in Vancouver, Canada that expires on February 28, 2023. In December 2020, the Company entered into an agreement to sublet the entire office premises to a third party until February 27, 2023. Pursuant to the sublease agreement, the subtenant will pay base rent of $0.2 million per annum to the Company and all operating costs related to the office space.

The components of lease expense, which are recorded in general and administrative expense, and related cash flows for the three and six months ended June 30, 2021 and 2020 were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
	(in thousands)
Operating lease cost	$	75	$	50	$	118	$	101
Short-term lease cost		6		7		13		29
		81		57		131		130
Operating cash flows used for operating leases	$	58	$	52	$	115	$	104

As of June 30, 2021, the weighted average remaining lease term and discount rate for the operating leases are 3.2 years and 4.9%, respectively.

As of June 30, 2021, maturities of lease liability due under the lease agreements are as follows:

Years Ending December 31:	Operating Leases
	(in thousands)
Remainder of 2021	$	172
2022		402
2023		223
2024		229
2025		58
Total lease payments		1,084
Less imputed interest		(78	)
Total	$	1,006

In addition to base rent, the Vancouver lease requires payment of operating costs. These costs are not included in the table above or the sublease amount. These amounts also have not been reduced by future base rent due under the Vancouver sublease of $0.3 million.