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Note 14 - Taxes on Income (Details Textual) ₪ in Thousands | 12 Months Ended | 24 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2022 ILS (₪) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 ILS (₪)
Tax Cuts and Jobs Act of 2017, Transition Tax, Income Tax Expense (Benefit) |  |  |  |  |  |  |  | $ 16,053,000 |  |
Income Tax Expense (Benefit), Total |  | $ 18,075,000 |  | $ 5,292,000 | $ 4,900,000 |  |  |  |  |
Deferred Tax Assets, Net, Total | [1] | 8,599,000 |  | 15,850,000 |  |  |  |  | $ 8,599,000 |
Deferred Tax Assets, Valuation Allowance |  | 43,873,000 |  | 19,288,000 |  |  |  |  | 43,873,000 |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 1,633,000,000 |  | $ 1,610,000 |  |  |  |  | 1,633,000,000 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total |  | $ 0 |  |  |  |  |  |  | 0 |
Maximum [Member] | Technological Preferred Enterprise [Member] |  |  |  |  |  |  |  |  |  |
Taxable Income Subject to Lower Tax Rate | ₪ |  |  | ₪ 10,000,000 |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Revenue Commissioners, Ireland [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 12.50% | 12.50% |  |  |  |  |  |  |
Operating Loss Carryforwards |  | $ 49,611,000 |  |  |  |  |  |  | 49,611,000 |
Foreign Tax Authority [Member] | Revenue Commissioners, Ireland [Member] | Interest Income [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 25.00% | 25.00% |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] |  |  |  |  |  |  |  |  |  |
Income Tax Rate, Foreign Ownership Exceeds 90% |  | 10.00% | 10.00% |  |  |  |  |  |  |
Income Tax Rate, Foreign Ownership Exceeds 49% |  | 20.00% | 20.00% |  |  |  |  |  |  |
Income Tax Expense (Benefit), Total |  | $ 0 |  |  |  |  |  |  |  |
Undistributed Earnings of Foreign Subsidiaries |  | 33,677 |  |  |  |  |  |  | 33,677 | ₪ 118,512
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries |  | $ 0 |  |  |  |  |  |  | 0 |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 23.00% | 23.00% |  |  |  |  |  |  |
Open Tax Year |  | 2018 2019 2020 | 2018 2019 2020 |  |  |  |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | $ 31,494,000 |  |  |  |  |  |  | 31,494,000 |
Operating Loss Carryforwards |  | $ 16,284,000 |  |  |  |  |  |  | $ 16,284,000 |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Dividends Paid to Foreign Companies [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 4.00% | 4.00% |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Intellectual Property [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 12.00% | 12.00% |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Intellectual Property [Member] | Development Area A [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 7.50% | 7.50% |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Tax Exemption Period (Year) |  | 2 years | 2 years |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Israel Tax Authority [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  | 23.00% | 23.00% |  |  |  |  |  |  |
Tax Exemption Period (Year) |  | 10 years | 10 years |  |  |  |  |  |  |
Foreign Tax Authority [Member] | Ministry of the Economy, Finance and Industry, France [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  |  |  |  |  |  |  |  | 10.00% |
Effective Income Tax Rate Reconciliation, Taxable Profit Up to 500,000 Euros, Percent |  |  |  |  |  | 28.00% | 28.00% |  |  |
Effective Income Tax Rate Reconciliation, Taxable Profit Above 500,000 Euros, Percent |  |  |  |  |  | 31.00% | 33.33% |  |  |
Effective Income Tax Rate Reconciliation, Specific Revenues Under the French Ip Box Regime |  |  |  |  |  |  |  |  | 10.00% |
Effective Income Tax Rate Reconciliation, Plus Social Surtax, Percent, Total |  |  |  |  |  |  |  |  | 10.30% |
Foreign Tax Authority [Member] | Ministry of the Economy, Finance and Industry, France [Member] | Tax Year 2020 [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  |  |  |  | 28.00% |  |  |  |  |
Foreign Tax Authority [Member] | Ministry of the Economy, Finance and Industry, France [Member] | Tax Year 2021 [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  |  |  | 26.50% |  |  |  |  |  |
Foreign Tax Authority [Member] | Ministry of the Economy, Finance and Industry, France [Member] | Tax Year 2022 [Member] |  |  |  |  |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent, Total |  |  |  | 25.00% |  |  |  |  |  |
Domestic Tax Authority [Member] |  |  |  |  |  |  |  |  |  |
Deferred Tax Assets, Net, Total |  | $ 4,544,000 |  | $ 119,000 |  |  |  |  | $ 4,544,000 |
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |  |  |  |  |
Deferred Tax Liabilities, Net, Total |  | 0 |  |  |  |  |  |  | 0 |
State and Local Jurisdiction [Member] | California Franchise Tax Board [Member] |  |  |  |  |  |  |  |  |  |
Operating Loss Carryforwards |  | $ 27,300,000 |  |  |  |  |  |  | $ 27,300,000 |
Net Operating Loss Carryforwards Begins to Expire |  |  |  | 2030 |  |  |  |  |  |
[1] | $45 and $119 net deferred taxes for the years ended December 31, 2020 and 2021, respectively, are from domestic jurisdictions.

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