Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Measurement Inputs and Valuation Techniques [Line Items]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarizes the types of assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

	March 31, 2022
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	26,281	$	—	$	—	$	26,281
Total financial assets	$	26,281	$	—	$	—	$	26,281
Liability:
Contingent consideration liability	$	—	$	—	$	8,943	$	8,943
Total financial liabilities	$	—	$	—	$	8,943	$	8,943

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	38,522	$	—	$	—	$	38,522
Total financial assets	$	38,522	$	—	$	—	$	38,522
Liability:
Contingent consideration liability	$	—	$	—	$	14,094	$	14,094
Total financial liabilities	$	—	$	—	$	14,094	$	14,094

Schedule of Fair Value of Stock Options Estimated Using Weighted-Average Assumptions

The fair value of stock options was estimated using the following weighted-average assumptions:

	Three Months Ended March 31,
	2022	2021
Expected volatility	70.8%		72.9% - 74.6%
Risk-free interest rate	1.9%		0.6% - 1.1%
Dividend yield	0%		0%
Expected term	6 years		5 - 6 years

Schedule of Change in Fair Value of the Redeemable Convertible Preferred Stock Warrant Liability, Derivative Liabilities and Contingent Consideration Liability

The change in fair value of the redeemable convertible preferred stock warrant liability, derivative liabilities and contingent consideration liability are summarized below (in thousands):

		Redeemable convertible preferred stock warrant liability		Derivative liabilities		Contingent consideration liability
Beginning fair value, January 1, 2021	$	42	$	38,007	$	23,667
Change in fair value		582		6,121		(204)
Ending fair value, March 31, 2021	$	624	$	44,128	$	23,463

		Contingent consideration liability
Beginning fair value, January 1, 2022	$	14,094
Change in fair value		(151)
Payment		(5,000)
Ending fair value, March 31, 2022	$	8,943

Level 3

Fair Value Measurement Inputs and Valuation Techniques [Line Items]

Schedule of Fair Value of Stock Options Estimated Using Weighted-Average Assumptions

The redeemable convertible preferred stock warrant liability was valued using the following assumptions under the Black-Scholes option-pricing model:

	March 31, 2021
Expected dividends	0%
Expected volatility	49.3% -53.5%
Risk-free interest rate	1.2% -1.6%
Expected warrant life	6.1-8.3 years