Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies.

Schedule of balance sheet information related to leases

	December 31, 2019		December 31, 2018
Operating leases:
Operating lease right-of-use assets	$	5,472	$	—
Other current liabilities		611		—
Operating lease liabilities		7,793		—
Total operating lease liabilities	$	8,404	$	—
Finance leases:
Property and equipment, at cost	$	45	$	59
Accumulated depreciation		(25)		(29)
Property and equipment, net		20		30
Other current liabilities		9		10
Other long-term liabilities		11		20
Total finance lease liabilities	$	20	$	30

Schedule of components of lease expense

	Year Ended
	December 31,
	2019		2018		2017
Operating lease costs:
Operating lease rental expense	$	1,187	$	1,532	$	1,355
Other income		(1,263)		(139)		—
Total operating lease costs	$	(76)	$	1,393	$	1,355
Finance lease costs:
Amortization of right-of-use assets	$	11	$	12	$	8
Interest on lease liabilities		2		3		2
Total finance lease costs	$	13	$	15	$	10

Schedule of cash flow information

	Year Ended
	December 31,
	2019		2018
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	(167)	$	(1,393)
Operating cash flows from finance leases		—		—
Financing cash flows from finance leases		(12)		(14)

Schedule of maturities of operating lease liabilities

	Operating Leases		Financing Leases
2020	$	1,352	$	10
2021		1,376		8
2022		1,401		4
2023		1,425		—
2024 and beyond		6,586		—
Total minimum lease payments	$	12,140	$	22
Interest Expense		(3,736)		(2)
Lease liability	$	8,404	$	20

Schedule of maturities of financing lease liabilities

	Operating Leases		Financing Leases
2020	$	1,352	$	10
2021		1,376		8
2022		1,401		4
2023		1,425		—
2024 and beyond		6,586		—
Total minimum lease payments	$	12,140	$	22
Interest Expense		(3,736)		(2)
Lease liability	$	8,404	$	20

Schedule of expected sublease inflows

	Sublease
2020	$	1,078
2021		943
2022		—
2023		—
2024 and beyond		—
Total minimum lease payments	$	2,021

Schedule of lease term and discount rates

	Year Ended December 31,
	2019		2018
Weighted average remaining lease term (years)
Operating leases		8		9
Finance leases		2		2
Weighted average discount rate
Operating leases		9.2%		0.0%
Finance leases		6.5%		6.5%