Note 7 - Goodwill and Intangible Assets, Net - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2023		Dec. 31, 2022
Total intangible assets, Gross Carrying Amount		$ 16,695		$ 15,089
Total intangible assets, Accumulated Amortization		10,172	[1]	9,141
Total intangible assets, Net	[1]	3,556		3,556
Intangible assets, net		$ 2,967		2,392
Customer Relationships [Member] | VisiSonics [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		4 years
Total intangible assets, Gross Carrying Amount		$ 432		0
Total intangible assets, Accumulated Amortization		72	[1]	0
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 360		0
Customer Relationships [Member] | Acquisition of Hillcrest Labs [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		4 years 4 months 24 days
Total intangible assets, Gross Carrying Amount		$ 3,518		3,518
Total intangible assets, Accumulated Amortization		3,190		2,998
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 328		520
Technology-Based Intangible Assets [Member] | VisiSonics [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		5 years
Total intangible assets, Gross Carrying Amount		$ 1,174		0
Total intangible assets, Accumulated Amortization		157		0
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 1,017		0
Customer Backlog [Member] | Acquisition of Hillcrest Labs [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		6 months
Total intangible assets, Gross Carrying Amount		$ 72		72
Total intangible assets, Accumulated Amortization		72	[1]	72
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 0		0
Research and Development Tools [Member] | Acquisition of Hillcrest Labs [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		7 years 6 months
Total intangible assets, Gross Carrying Amount		$ 2,475		2,475
Total intangible assets, Accumulated Amortization		1,470	[1]	1,140
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 1,005		1,335
Research and Development Tools [Member] | Immervision [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		6 years 4 months 24 days
Total intangible assets, Gross Carrying Amount		$ 7,063		7,063
Total intangible assets, Accumulated Amortization		3,507	[1]	3,507
Total intangible assets, Net	[1]	3,556		3,556
Intangible assets, net		$ 0		0
NB-IoT technologies [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		7 years
Total intangible assets, Gross Carrying Amount		$ 1,961		1,961
Total intangible assets, Accumulated Amortization		1,704		1,424
Total intangible assets, Net	[1]	0		0
Intangible assets, net		$ 257		$ 537

[1] During 2022, the Company recorded an impairment charge of $3,556 in operating expenses with respect to Immervision technology acquired in August 2019, as the Company has decided to cease the development of this product line.