Note 6 - Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

					June 30, 2021
	Weighted Average		Weighted Average
	Life		Remaining Life				Accumulated
(in thousands)	(Years)		(Years)		Cost		Amortization			Net Book Value
Developed technology		4.4		1.3	$	27,356	$	(19,268	)	$	8,088
Patent licenses		14.0		3.2		1,387		(1,071	)		316
Non-compete agreements		2.0		1.1		500		(229	)		271
Total intangibles subject to amortization					$	29,243	$	(20,568	)		8,675
Intangible assets not subject to amortization											40
Total intangible assets, net										$	8,715

					December 31, 2020
	Weighted Average		Weighted Average
	Life		Remaining Life				Accumulated
(in thousands)	(Years)		(Years)		Cost		Amortization			Net Book Value
Developed technology		4.4		1.8	$	27,356	$	(16,152	)	$	11,204
Patent licenses		14.0		3.7		1,387		(1,021	)		366
Non-compete agreements		2.0		1.6		500		(104	)		396
Total intangibles subject to amortization					$	29,243	$	(17,277	)		11,966
Intangible assets not subject to amortization											40
Total intangible assets, net										$	12,006

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	(in thousands)
2021 (remaining six months)	$	3,290
2022		4,823
2023		350
2024		212
Total expected future amortization expense	$	8,675