Note 7 - Intangible Assets, Net - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022		Mar. 31, 2018
Total intangible assets, Gross Carrying Amount		$ 22,661	$ 22,661
Total intangible assets, Accumulated Amortization		13,102	12,425	[1]
Total intangible assets, Impairment		3,556	3,556
Intangible assets, net		$ 6,003	6,680
Customer Relationships [Member] | Intrinsix Corp. [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		5 years 6 months
Total intangible assets, Gross Carrying Amount		$ 3,604	3,604
Total intangible assets, Accumulated Amortization		1,201	1,037	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 2,403	2,567
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		3,070	2,998	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 448	520
Customer Backlog [Member] | Intrinsix Corp. [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		1 year 6 months
Total intangible assets, Gross Carrying Amount		$ 421	421
Total intangible assets, Accumulated Amortization		421	421	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 0	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	72	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 0	0
Patents [Member] | Intrinsix Corp. [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		5 years
Total intangible assets, Gross Carrying Amount		$ 218	218
Total intangible assets, Accumulated Amortization		80	69	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 138	149
Core Technologies [Member] | Intrinsix Corp. [Member]
Total intangible assets, Weighted Average Amortization Period (Year)		3 years
Total intangible assets, Gross Carrying Amount		$ 3,329	3,329
Total intangible assets, Accumulated Amortization		2,035	1,757	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 1,294	1,572
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		1,222	1,140	[1]
Total intangible assets, Impairment		0	0
Intangible assets, net		$ 1,253	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	3,507	[1]
Total intangible assets, Impairment		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		$ 2,200
Total intangible assets, Accumulated Amortization		1,494	1,424	[1]
Total intangible assets, Impairment	[2]	0	0
Intangible assets, net		$ 467	$ 537	[2]

[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.

[2] During the first quarter of 2018, the Company entered into an agreement to acquire certain NB-IoT technologies in the amount of $2,800, of which technologies valued at $600 have not been received and have been written off during 2022. Of the $2,200, $210 has not resulted in cash outflows as of December 31, 2022. In addition, the Company participated in programs sponsored by the Hong Kong government for the support of the above investment, and as a result, the Company received during 2019 an amount of $239 related to the NB-IoT technologies, which was reduced from the gross carrying amount of intangible assets. The Company recorded the amortization cost of the NB-IoT technologies in “cost of revenues” on the Company’s consolidated statements of income (loss).