The Company has entered into operating leases to facilitate the expansion of its manufacturing, research and development, and selling, general and administrative activities. For purposes of calculating operating lease liabilities, lease terms may be deemed to include options to extend or terminate the lease when those events are reasonably certain to occur. The interest rate implicit in lease contracts is typically not readily determinable and as such the Company uses the appropriate incremental borrowing rate based on information available at the lease commencement date in determining the present value of the lease payments. Current lease agreements do not contain any residual value guarantees or material restrictive covenants. As of September 30, 2020, the Company did not have any finance leases and no additional operating leases that have not yet commenced.

The following table presents the Company’s operating lease cost and supplemental cash flow information related to the Company’s operating leases (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Operating lease cost	$	537	$	456	$	1,609	$	1,316
Non-cash activity:
Right-of-use assets obtained in exchange for lease obligations	$	—	$	1,503	$	—	$	9,776

As of September 30, 2020, current operating leases had remaining terms between one and eight years with options to extend the lease terms and the Company had operating lease right-of-use assets of $7.2 million, current operating lease liabilities of $1.1 million and long-term operating lease liabilities of $6.1 million.

The following table presents weighted average assumptions used to compute the Company’s right-of-use assets and lease liabilities:

	September 30, 2020
Weighted average remaining lease term (in years)		7.2
Weighted average discount rate		5.5	%

Undiscounted future minimum lease payments as of September 30, 2020, by year and in the aggregate, having non-cancelable lease terms in excess of one year were as follows (in thousands):

	Maturities of Operating Lease Liabilities
2020 ⁽¹⁾	$	388
2021		1,278
2022		1,209
2023		1,070
2024		1,007
Thereafter		3,771
Total lease payments		8,723
Less: Imputed interest		(1,539	)
Present value of lease payments	$	7,184