Note 7 - Intangible Assets, Net

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Intangible Assets Disclosure [Text Block]

NOTE 7. Intangible Assets, Net

Intangible assets consist primarily of developed technology and patent licenses acquired from business or asset acquisitions. Acquired intangibles are amortized on a straight-line basis over the respective estimated useful lives of the assets.

The carrying values of intangible assets are as follows:

					December 31, 2020
	Weighted Average Lives (Years)		Weighted Average Remaining Lives (Years)		Cost		Accumulated Amortization			Net Book Value
					(in thousands)
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

						December 31, 2019
	Weighted Average Lives (Years)		Weighted Average Remaining Lives (Years)		Cost		Accumulated Amortization			Net Book Value
						(in thousands)
Developed technology		4.6		2.7	$	26,356	$	(10,066	)	$	16,290
Patent licenses		14.0		4.7		1,387		(922	)		465
Total intangibles subject to amortization					$	27,743	$	(10,988	)		16,755
Intangible assets not subject to amortization											40
Total intangible assets, net										$	16,795

Intangible assets amortization expenses were $6.3 million, $6.1 million and $3.7 million for 2020, 2019 and 2018 respectively, which were recorded in cost of revenues in the consolidated statements of operations.

As of December 31, 2020, the Company expects amortization expense in future periods to be as follows:

		(in thousands)
2021	$	6,581
2022		4,823
2023		350
2024		212
Total expected future amortization expense	$	11,966