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Note 7 - Intangible Assets, Net - Schedule of Finite-lived Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2018
Total intangible assets, Gross Carrying Amount $ 22,661 $ 15,089  
Total intangible assets, Accumulated Amortization 8,054 4,253  
Intangible assets, net $ 14,607 10,836  
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 0  
Total intangible assets, Accumulated Amortization 382 0  
Intangible assets, net $ 3,222 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 2,130 1,262  
Intangible assets, net $ 1,388 2,256  
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 0  
Total intangible assets, Accumulated Amortization 164 0  
Intangible assets, net $ 257 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  
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 0  
Total intangible assets, Accumulated Amortization 26 0  
Intangible assets, net $ 192 0  
Core Technologies [Member] | Intrinsix Corp. [Member]      
Total intangible assets, Weighted Average Amortization Period (Year) 3 years    
Total intangible assets, Gross Carrying Amount $ 3,329 0  
Total intangible assets, Accumulated Amortization 647 0  
Intangible assets, net $ 2,682 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 810 480  
Intangible assets, net $ 1,665 1,995  
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 2,679 1,575  
Intangible assets, net $ 4,384 5,488  
NB-IoT technologies [Member]      
Total intangible assets, Weighted Average Amortization Period (Year) [1] 7 years    
Total intangible assets, Gross Carrying Amount $ 1,961 [1] 1,961 [1] $ 2,200
Total intangible assets, Accumulated Amortization [1] 1,144 864  
Intangible assets, net [1] $ 817 $ 1,097  
[1] 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 has not been received. Of the $2,200, $210 has not resulted in cash outflows as of December 31, 2021. 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 on “cost of revenues” on the Company’s consolidated statements of income (loss).