Commitments and Contingencies - Schedule of Rent Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Operating leases	$ 453	$ 302	$ 302
Short-term lease	36	6
Total rent expense	$ 489	$ 308	$ 302