Note 1 - Organization and Significant Accounting Policies (Details Textual) $ in Thousands		3 Months Ended	12 Months Ended
	May 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019
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			3,556	0	0
Investments, Fair Value Disclosure, Total			408
Remeasurement of Marketable Equity Securities			$ 2,511	(1,983)	(0)
Technical Support Period (Month)			12 months
Sales Commission, Expected Amortization Period Within Which the Sales Commission Fee is Expensed When Incurred (Year)						1 year
Reduction from Research and Development Expenses Due to Receipt of Grants			$ 4,850	3,595	2,844
Research and Development Tax Credit			2,152	2,299	3,287
Investment Tax Credit			$ 164	248	198
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			$ 1,034	1,155	1,232
Severance Costs			2,706	1,943	1,983
Advertising Expense			$ 746	$ 623	$ 559
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares			985,277	65,073	1,132,017
Foreign Exchange Forward and Option Contracts [Member] | Cash Flow Hedging [Member]
Derivative, Notional Amount			$ 12,200	$ 4,500
Restricted Stock Units, Performance Stock Units and ESPP [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total			$ 22,376
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)				1 year 7 months 6 days
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total				$ 0
NB-IoT technologies [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			7 years
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			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
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			$ 439
Short-Term Investments [Member]
Percentage of Interest Rate, Savings Deposits			1.54%	1.12%	2.53%
Long-term Investments [Member]
Percentage of Interest Rate, Savings Deposits			3.80%	1.15%	1.32%
Operating Expense [Member] | Immervision Technology [Member]
Impairment of Intangible Assets, Finite-Lived			$ 3,556
Cost of Sales [Member] | NB-IoT technologies [Member]
Impairment of Intangible Assets, Finite-Lived			479
Cost of Sales [Member] | Assets and Services from Purchase Agreement [Member]
Impairment of Intangible Assets, Finite-Lived			$ 1,479
Intrinsix Corp. [Member]
Business Combination, Consideration Transferred, Total	$ 33,096
Payments to Acquire Businesses, Gross	26,704
Business Combination, Consideration Transferred, Escrow to Satisfy Indemnification Claims	4,260
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred		$ (473)
Intrinsix Corp. [Member] | General and Administrative Expense [Member]
Business Combination, Acquisition Related Costs				$ 970
Intrinsix Corp. [Member] | Chief Executive Officer and Chief Technology Officer of Intrinsix [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 2,605
Percentage of Merger Consideration	25.00%