Income Taxes - Summary of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Current federal income tax	$ (276)	$ 246
Current state income tax	46	254
Deferred income tax (benefit)		(344)
Income tax expense (benefit)	$ 230	$ (156)