Income Taxes (Details) - Summary of income tax expense (benefit) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current
U.S.
State
Foreign	13	22
Total current income tax expense	13	22
Deferred
U.S.
State
Foreign
Total deferred income tax expense (benefit)
Total income tax expense (benefit)	$ 13	$ 22