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v3.24.0.1

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 |  |

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