Leases (Tables)

9 Months Ended

Sep. 30, 2020

Lessee Disclosure [Abstract]

Schedule of Leases

Leases consisted of the following (in thousands):

Leases	Balance Sheet Line Item	September 30, 2020		December 31, 2019
Assets
Operating lease assets	Right of use asset	$	6,013	$	1,963
Total leased assets		$	6,013	$	1,963
Liabilities
Current - Operating	Operating lease liability- current	$	700	$	611
Noncurrent - Operating	Operating lease liability- noncurrent		5,574		1,497
Total leased liabilities		$	6,274	$	2,108

Lease Cost	Classification	For the Three Months Ended September 30, 2020			For the Three Months Ended September 30, 2019			For the Nine Months Ended September 30, 2020			For the Nine Months Ended September 30, 2019
Operating lease cost	SG&A and R&D Expenses	$	261		$	177		$	745		$	529
Short term lease cost (1)	R&D Expenses		109			45			303			138
Short term lease cost	SG&A Expenses		—			—			3			—
Sublease income (2)	SG&A and R&D Expenses		(12	)		(13	)		(34	)		(40	)
Net lease cost		$	358		$	209		$	1,017		$	627

(1) Short term lease cost included in R&D expenses consists primarily of field trial lease agreements with a lease term of 12 months or less.

(2) Sublease income is recorded as a credit to lease expense.

Lease Term and Discount Rate	September 30, 2020			December 31, 2019
Weighted-average remaining    lease term (years)		5.8			2.6
Weighted-average discount rate		6.6	%		7.0	%