Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

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

Our assets and liabilities that are measured at fair value on a recurring basis included the following (in thousands):

	Fair Value Measurement at March 31, 2023 Using:
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs		Total
	(Level 1)		(Level 2)		(Level 3)
Assets
Money market funds (included in    cash and cash equivalents)	$	1,463	$	—	$	—	$	1,463
Marketable securities		18,912		—		—		18,912
Note receivable		-		—		2,632		2,632
Total assets	$	20,375	$	—	$	2,632	$	23,007
Liabilities
Contingent acquisition payment	$	—	$	—	$	812	$	812
Total liabilities	$	—	$	—	$	812	$	812

	Fair Value Measurement at December 31, 2022 Using:
	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs		Total
	(Level 1)		(Level 2)		(Level 3)
Assets
Money market funds (included in    cash and cash equivalents)	$	10,967	$	—	$	—	$	10,967
Marketable securities		17,229		—		—	$	17,229
Note receivable		—		—		2,601		2,601
Total assets	$	28,196	$	—	$	2,601	$	30,797
Liabilities
Contingent acquisition payment	$	—	$	—	$	812	$	812
Total liabilities	$	—	$	—	$	812	$	812

Summary of Marketable Securities by Security Type

Marketable securities by security type consisted of the following (in thousands):

	March 31, 2023:
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury notes and bonds	$	13,466	$	85	$	(26	)	$	13,525
Corporate bonds		5,409		2		(24	)		5,387
	$	18,875	$	87	$	(50	)	$	18,912

	December 31, 2022:
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury notes and bonds	$	13,389	$	24	$	(100	)	$	13,313
Corporate bonds		3,950		—		(34	)		3,916
	$	17,339	$	24	$	(134	)	$	17,229

Summary of Changes in Note Receivable

Changes in Note receivable consisted of the following (in thousands):

	Three Months Ended
	March 31, 2023
	Amortized Cost
Balance as of December 31, 2022	$	2,601
Accrued interest		31
Balance as of March 31, 2023	$	2,632