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Note 1 - Organization and Significant Accounting Policies (Details Textual) $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 14, 2023 USD ($) | Jan. 31, 2024 USD ($) | May 31, 2023 USD ($) | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares
Number of Operating Segments |  |  |  | 1 |  |
Disposal Group, Including Discontinued Operation, Depreciation and Amortization |  |  |  |  | $ 1,081 | $ 2,205
Business Combination, Consideration Transferred |  |  |  | $ 753 | $ (0) | $ (0)
Percentage of Interest Rate, Savings Deposits |  |  |  | 4.53% | 3.95% | 1.54%
Number of Reportable Segments |  |  |  | 1 |  |
Goodwill, Impairment Loss |  |  |  | $ 0 |  |
Impairment of Intangible Assets, Finite-Lived |  |  |  | 0 | $ 0 | $ 3,556
Investments, Fair Value Disclosure |  |  |  | 312 |  |
Remeasurement of marketable equity securities |  |  |  | 94 | 2 | 2,511
Remeasurement of Marketable Equity Securities |  |  |  | 94 | 2 | 2,511
Reduction from Research and Development Expenses Due to Receipt of Grants |  |  |  | 1,407 | 1,668 | 4,850
Research and Development Tax Credit |  |  |  | 2,805 | 2,509 | 2,152
Investment Tax Credit |  |  |  | $ 149 | 107 | 164
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 |  |  |  | $ 1,090 | 1,371 | 1,034
Severance Costs |  |  |  | 1,835 | 2,117 | 2,706
Advertising Expense |  |  |  | $ 795 | $ 780 | $ 734
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares |  |  |  | 1,687,533 | 1,381,176 | 985,277
Foreign Exchange Forward and Option Contracts [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 0 | $ 16,500 |
Restricted Stock Units and Performance Stock Units [Member] |  |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  |  |  | $ 20,938 |  |
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 |  |  |  | $ 398 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  | 1 year 7 months 6 days |  |
Stock Appreciation Rights (SARs) [Member] |  |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total |  |  |  | $ 0 |  |
Immervision Technology [Member] |  |  |  |  |  |
Impairment of Intangible Assets, Finite-Lived |  |  |  |  |  | $ 3,556
NB-IoT technologies [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  | 7 years |  |
Impairment of Intangible Assets, Finite-Lived |  |  |  |  |  | 479
Assets and Services from Purchase Agreement [Member] |  |  |  |  |  |
Impairment of Intangible Assets, Finite-Lived |  |  |  |  |  | 1,479
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 |  |  |  |  | $ 144 | $ 439
VisiSonics [Member] |  |  |  |  |  |
Payments to Acquire Productive Assets |  | $ 753 |  |  |  |
Asset Acquisition, Contingent Consideration, Liability |  | $ 2,100 |  |  |  |
Intrinsix Corp. [Member] |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred | $ 240 |  |  |  |  |
VisiSonics [Member] |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  | $ 3,600 |  |  |
Business Combination, Price of Acquisition, Expected Additional Payment Per Founder |  |  | $ 100 |  |  |
Business Acquisition, Transaction Costs |  |  |  | $ 117 |  |
Intrinsix Corp. [Member] |  |  |  |  |  |
Sale of Stock, Consideration | 35,000 |  |  |  |  |
Sale of Stock, Amount Held for Post Closing Price Adjustment | 300 |  |  |  |  |
Sale of Stock, Amount Held for Indemnification Obligations | $ 3,500 |  |  |  |  |

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