Note 2 - Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

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

As of June 30, 2022	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market accounts	$	17,086	$	-	$	-	$	17,086
Corporate debt securities		-		2,242		-		2,242
Non-U.S. government agency securities		-		748		-		748
Marketable debt securities:
U.S. government securities		10,335		-		-		10,335
Corporate debt securities		-		11,515		-		11,515
Other debt securities		-		1,185		-		1,185
Total		27,421		15,690		-		43,111
Liabilities:
Contingent consideration - business combinations		-		-		3,515		3,515
Debt		-		7,551		-		7,551
Total	$	-	$	7,551	$	3,515	$	11,066

As of December 31, 2021	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	63,873	$	-	$	-	$	63,873
Total		63,873		-		-		63,873
Liabilities:
Contingent consideration - business combinations		-		-		10,027		10,027
Debt		-		7,215		-		7,215
Total	$	-	$	7,215	$	10,027	$	17,242

Warrant Liabilities [Member]

Notes Tables

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

	Six Months Ended
	June 30,
(In thousands)	2022		2021
Beginning balance	$	-	$	2,780
Exercised warrants		-		(2,901	)
Change in fair value recognized in net (loss) income		-		121
Ending balance	$	-	$	-

Contingent Consideration Liabilities [Member]

Notes Tables

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

	Six Months Ended
	June 30,
(In thousands)	2022			2021
Beginning balance	$	10,027		$	7,152
Change in fair value recognized in net (loss) income		(5,695	)		1,226
Payment of contingent consideration earned		(817	)		-
Ending balance	$	3,515		$	8,378