Note 3 - Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

As of March 31, 2023	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market accounts	$	14,021	$	-	$	-	$	14,021
Available-for-sale securities:
U.S. government securities		9,377		-		-		9,377
Corporate debt securities		-		24,663		-		24,663
Other debt securities		-		3,759		-		3,759
Total	$	23,398	$	28,422	$	-	$	51,820
Liabilities:
Contingent consideration - business combinations		-		-		5,176		5,176
Debt		-		24,942		-		24,942
Total	$	-	$	24,942	$	5,176	$	30,118
As of December 31, 2022
Assets:
Cash equivalents:
Money market accounts	$	11,416	$	-	$	-	$	11,416
Available-for-sale securities:
U.S. government securities		15,051		-		-		15,051
Corporate debt securities		-		26,047		-		26,047
Other debt securities		-		3,494		-		3,494
Total	$	26,467	$	29,541	$	-	$	56,008
Liabilities:
Contingent consideration - business combinations		-		-		4,456		4,456
Debt		-		25,607		-		25,607
Total	$	-	$	25,607	$	4,456	$	30,063

Contingent Consideration Liabilities [Member]

Notes Tables

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Three Months Ended
	March 31,
(In thousands)	2023		2022
Beginning balance as of December 31, 2022 and 2021	$	4,456	$	10,027
Change in fair value recognized in net loss		720		(3,335	)
Ending balance	$	5,176	$	6,692