Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ 0	$ 0
State	27	27
Total current	27	27
Deferred:
Federal	137	(117)
State	11	11
Total deferred	148	(106)
Provision (benefit) for income tax	$ 175	$ (79)

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