Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Components of Lease Expense and Supplemental Cash Flow Information Related To Leases

The components of lease expense were as follows:

	Year Ended December 31,
	2021		2020		2019
Lease cost
Operating lease cost
Operating lease	$	336	$	328	$	328
Variable lease costs	34		19		13
Total lease cost	$	370	$	347	$	341

Supplemental cash flow information related to leases were as follows:

	Year Ended December 31,
	2021		2020		2019
Other information
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	370	$	361	$	351

	Year Ended December 31,
	2021		2020
Lease term and discount rate
Weighted-average remaining lease term operating leases	2.0 years		2.0 years
Weighted-average discount rate operating leases	11.8	%	11.8	%

Future Minimum Lease Payments

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:

Maturity of lease liabilities
2022		$381
2023		226
	Total lease payments	607
	Less: Interest	(52)
	Present value of lease liabilities	$555

Components of Lease Assets and Liabilities

Components of Lease Assets and Liabilities

	December 31, 2021
Assets
Property and equipment, net operating lease-right of use asset	$	520
Liabilities
Current liabilities operating lease-current liability	$	336
Other long-term liabilities operating lease-noncurrent liability	219
Total lease liabilities	$	555