Fair value of financial instruments (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule of financial assets and liabilities at fair value on a recurring basis

			Quoted Prices
			in Active		Significant
			Markets for		Other		Significant
	Balance at		Identical		Observable		Unobservable
	June 30,		Assets		Inputs		Inputs
	2022		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash and cash equivalents	$	46,881	$	42,673	$	4,208	$	—
U.S. Treasury securities		40,725		—		40,725		—
Total Assets	$	87,606	$	42,673	$	44,933	$	—
Liabilities:
Contingent consideration – Long term portion	$	5,599	$	—	$	—	$	5,599
Total Liabilities	$	5,599	$	—	$	—	$	5,599

			Quoted Prices
			in Active		Significant
			Markets for		Other		Significant
	Balance at		Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2021		(Level 1)		(Level 2)		(Level 3)
Liabilities:
Contingent consideration – Long term portion	$	7,850	$	—	$	—	$	7,850
Total Liabilities	$	7,850	$	—	$	—	$	7,850

Summary of cash, cash equivalents and marketable securities

		June 30, 2022
				Gross		Gross
				Unrealized		Unrealized		Estimated
		Cost		Gains		Losses		Fair Value
Cash and cash equivalents	$	46,882	$	—	$	(1)	$	46,881
Marketable securities:				—		—
U.S. Treasury securities due in one year or less		40,816		—		(91)		40,725
Total marketable securities		40,816		—		(91)		40,725
Total cash, cash equivalents, and marketable securities	$	87,698	$	—	$	(92)	$	87,606

Warrant liability

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule of changes in the fair value of the liability

Balance as of December 31, 2020	$	490
Change in fair value of warrant liability		2,728
Reclassification of warrant liability to stockholders’ equity		(3,218)
Balance as of June 30, 2021	$	—

Contingent consideration - Long term portion

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule of changes in the fair value of the liability

Balance as of December 31, 2021	$	7,850
Reclassification of FY 2022 payment to accrued expenses		(1,295)
Change in contingent consideration value		(956)
Balance as of June 30, 2022	$	5,599

Balance as of December 31, 2020	$	6,984
Reclassification of FY 2021 payment to accrued expenses		(1,183)
Change in contingent consideration value		826
Balance as of June 30, 2021	$	6,627

Schedule of significant unobservable inputs for fair value measurements

	Fair Value
	as of
	June 30,		Valuation	Unobservable
Contingent Consideration Liability	2022		Technique	Inputs
Revenue-based Payments	$	5,599	Discounted Cash Flow Analysis under the Income Approach	Revenue discount factor, discount rate