Leases (Tables)

9 Months Ended

Sep. 30, 2020

The components of lease expense were as follows and are included in general and administrative expense (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2020		2019		2020
Operating lease cost	$	596	$	643	$	1,773	$	1,935
Short-term lease cost		47		96		137		245
Variable lease costs		105		67		304		282
Total lease expense	$	748	$	806	$	2,214	$	2,462

Supplemental balance sheet information related to leases were as follows (in thousands, except lease term and discount rate):

	Balance Sheet Caption	December 31, 2019			September 30, 2020
					(unaudited)
Operating leases:
Operating lease assets	Operating lease assets	$	6,872		$	5,494
Current lease liabilities	Other current liabilities	$	2,125		$	2,284
Noncurrent lease liabilities	Noncurrent operating lease liabilities	$	5,335		$	3,689
Weighted average remaining lease term (years):
Operating leases			3.98			3.44
Weighted average discount rate:
Operating leases			8.50	%		8.36	%

Supplemental cash flow information related to leases were as follows (unaudited and in thousands):

	Nine Months Ended September 30,
	2019		2020
Supplemental cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	1,910	$	1,937

Remaining maturities on lease liabilities as of September 30, 2020 is as follows (unaudited and in thousands):

	Operating leases
2020 (October - December)	$	686
2021		2,515
2022		1,400
2023		1,305
2024		548
Thereafter		464
Total lease payments		6,918
Less: interest		945
Present value of lease liabilities	$	5,973