Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of financial assets and liabilities

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	83,701	$	—	$	—	$	83,701
Total fair value of assets	$	83,701	$	—	$	—	$	83,701
Financial liabilities
Common stock warrant liability	$	7,350	$	—	$	—	$	7,350
Earnout liability		—		—		5,743		5,743
Total fair value of financial liabilities	$	7,350	$	—	$	5,743	$	13,093

	December 31, 2020
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	18,778	$	—	$	—	$	18,778
Total fair value of assets	$	18,778	$	—	$	—	$	18,778
Financial liabilities
Derivative liability	$	—	$	—	$	8,158	$	8,158
Total fair value of financial liabilities	$	—	$	—	$	8,158	$	8,158

Schedule of changes in the fair value

	Derivative tranche liability			Earnout Liability
Fair Value as of January 1, 2020	$	4,053		$	—
Initial fair value of derivative instrument		—			—
Change in the fair value included in other expense		10,875			—
Settlement of obligation		(6,770	)		—
Fair Value as of December 31, 2020	$	8,158		$	—
Fair Value as of January 1, 2021	$	8,158		$	—
Initial fair value of earnout liability		—			15,020
Change in the fair value included in other expense (income)		3,501			(9,277	)
Settlement of obligation		(11,659	)		—
Fair Value as of December 31, 2021	$	—		$	5,743

Schedule of fair value measurements

	Fair value (in thousands)		Valuation methodology	Significant unobservalble input
Earnout liability	$	5,743	Monte Carlo Simulation	Common stock price	$	7.85
				Expected term (in years)		2.73
				Expected volatility		74.00	%
				Risk-free interest rate		0.90	%

	Fair value (in thousands)		Valuation methodology	Significant unobservalble input
Derivative tranche liability	$	8,158	Black-Scholes	Expected term (in years)	0.16
				Expected volatility	47.02	%
				Risk-free interest rate	0.08	%
				Expected dividend yield	0.00	%