Fair Value Measurements - Schedule of Reconciliation of Preferred Stock Warrant Liability Measured at Fair Value Using Level 3 Unobservable Inputs (Details) - Significant Unobservable Inputs (Level 3) - Recurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 45	$ 30
Change in fair value	75	15
Reclassification of warrant liability to stockholders’ equity	$ (120)
Ending Balance		$ 45