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Note 1 - Organization and Significant Accounting Policies (Details Textual)
 1 Months Ended 3 Months Ended 8 Months Ended 12 Months Ended
Sep. 14, 2023
USD ($)
May 31, 2021
USD ($)
May 31, 2023
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Disposal Group, Including Discontinued Operation, Depreciation and Amortization           $ 1,081,000 $ 2,205,000 $ 1,257,000
Impairment of Long-Lived Assets to be Disposed of           $ 0 0 0
Number of Operating Segments           1    
Number of Reportable Segments           1    
Goodwill, Impairment Loss           $ 0    
Impairment of Intangible Assets, Finite-Lived           0 3,556,000 0
Investments, Fair Value Disclosure         $ 406,000 406,000    
Remeasurement of Marketable Equity Securities           2,000 2,511,000 (1,983,000)
Reduction from Research and Development Expenses Due to Receipt of Grants           1,668,000 4,850,000 3,595,000
Research and Development Tax Credit           2,509,000 2,152,000 2,299,000
Investment Tax Credit           $ 107,000 164,000 248,000
Defined Contribution Plan, Contribution Rate           10.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Match           50.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay           6.00%    
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent           15.00%    
Defined Contribution Plan, Employer Discretionary Contribution Amount           $ 1,371,000 1,034,000 1,155,000
Severance Costs           2,117,000 2,706,000 1,943,000
Advertising Expense           $ 780,000 $ 734,000 $ 596,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares           1,381,176 985,277 65,073
Foreign Exchange Forward and Option Contracts [Member] | Cash Flow Hedging [Member]                
Derivative, Notional Amount         16,500,000 $ 16,500,000 $ 12,200,000  
Restricted Stock Units and Performance Stock Units [Member]                
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total         20,839,000 $ 20,839,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           1 year 6 months    
Unvested Stock Options and ESPP [Member]                
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total         275,000 $ 275,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           2 years    
Stock Appreciation Rights (SARs) [Member]                
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total         $ 0 $ 0    
Immervision Technology [Member]                
Impairment of Intangible Assets, Finite-Lived             3,556,000  
NB-IoT technologies [Member]                
Finite-Lived Intangible Asset, Useful Life (Year)         7 years 7 years    
Impairment of Intangible Assets, Finite-Lived             479,000  
Assets and Services from Purchase Agreement [Member]                
Impairment of Intangible Assets, Finite-Lived             1,479,000  
Minimum [Member]                
Finite-Lived Intangible Asset, Useful Life (Year)         6 months 6 months    
Percentage of Royalty Expense           3.00%    
Minimum [Member] | Foreign Exchange Forward and Option Contracts [Member] | Cash Flow Hedging [Member]                
Payroll of Non-US Employees Hedged, Term of Hedging Contracts (Month)           1 month    
Maximum [Member]                
Finite-Lived Intangible Asset, Useful Life (Year)         7 years 6 months 7 years 6 months    
Percentage of Royalty Expense           3.50%    
Maximum [Member] | Foreign Exchange Forward and Option Contracts [Member] | Cash Flow Hedging [Member]                
Payroll of Non-US Employees Hedged, Term of Hedging Contracts (Month)           12 months    
Office Building [Member]                
Operating Lease, Impairment Loss           $ 144,000 $ 439,000  
Short-Term Investments [Member]                
Percentage of Interest Rate, Savings Deposits         3.95% 3.95% 1.54% 1.12%
Long-term Investments [Member]                
Percentage of Interest Rate, Savings Deposits             3.80% 1.15%
Intrinsix Corp. [Member]                
Sale of Stock, Consideration $ 35,000,000              
Sale of Stock, Amount Held for Post Closing Price Adjustment 300,000              
Sale of Stock, Amount Held for Indemnification Obligations $ 3,500,000              
Intrinsix Corp. [Member]                
Business Combination, Consideration Transferred   $ 33,096            
Payments to Acquire Businesses, Gross   26,704,000            
Business Combination, Consideration Transferred, Escrow to Satisfy Indemnification Claims   4,260,000            
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred       $ (473,000)        
Intrinsix Corp. [Member] | General and Administrative Expense [Member]                
Business Combination, Acquisition Related Costs               $ 970,000
Intrinsix Corp. [Member] | Chief Executive Officer and Chief Technology Officer of Intrinsix [Member]                
Business Combination, Consideration Transferred, Liabilities Incurred   $ 2,605,000            
Percentage of Merger Consideration   25.00%            
VisiSonics [Member]                
Business Combination, Consideration Transferred     $ 3,600,000          
Business Combination, Price of Acquisition, Expected Additional Payment Per Founder         $ 100,000      
Business Acquisition, Transaction Costs         $ 117,000 $ 117,000