Commitments and Contingencies - Lease Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Renewal term	5 years
Operating lease costs	$ 870	$ 870
Operating lease liabilities	$ 769	$ 721
Weighted average discount rate	6.50%	6.50%
Weighted average remaining lease term	3 years 9 months 29 days	4 years 9 months 29 days