Note 7 - Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Goodwill [Table Text Block]

	Year ended December 31,
	2019		2020
Balance as of January 1,	$	46,612	$	51,070
Acquisition		4,458		—
Balance as of December 31,	$	51,070	$	51,070

Schedule of Finite-Lived Intangible Assets [Table Text Block]

			Year ended December 31, 2019						Year ended December 31, 2020
	Weighted average amortization period (years)		Gross carrying amount		Accumulated amortization		Net		Gross carrying amount		Accumulated amortization		Net
Intangible assets –amortizable:
Intangible assets related to the acquisition of Hillcrest Labs business
Customer relationships		4.4	$	3,518	$	395	$	3,123	$	3,518	$	1,262	$	2,256
Customer backlog		0.5		72		65		7		72		72		—
Core technologies		7.5		2,475		150		2,325		2,475		480		1,995
Intangible assets related to a technology investment in Immervision
Core technologies		6.4		7,063		472		6,591		7,063		1,575		5,488
Intangible assets related to an investment in NB-IoT technologies
NB-IoT technologies (*)		7.0		1,961		583		1,378		1,961		864		1,097
Total intangible assets			$	15,089	$	1,665	$	13,424	$	15,089	$	4,253	$	10,836

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

2021		2,582
2022		2,581
2023		1,906
2024		1,852
2025 and thereafter		1,915
	$	10,836