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Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Effective Income Tax Rate Reconciliation, GILTI, Amount | $ 284 | $ 0
Effective Income Tax Rate Reconciliation, GILTI, Amount | 284 | 0
Deferred Tax Assets, Net | 4,259 | 3,322
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 110 |
Unrecognized Tax Benefits, Income Tax Penalties Expense | 800 | 1
Unrecognized Tax Benefits, Interest on Income Taxes Expense | 3 | 400
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 16 | 15
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 20 | $ 17
Domestic Tax Jurisdiction [Member] |  |
Deferred Tax Assets, Net | 4,200 |
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 0 |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 0 |
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member] |  |
Operating Loss Carryforwards | 1,500 |
Deferred Tax Assets, Operating Loss Carryforwards, Domestic | 300 |
Capital Loss Carryforward, Tax Effect | 100 |
State and Local Jurisdiction [Member] |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 100 |
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 16 |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 20 |
Foreign Tax Jurisdiction [Member] |  |
Unrecognized Tax Benefits, Income Tax Penalties Accrued | 0 |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 0 |
Foreign Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member] | Research Tax Credit Carryforward [Member] |  |
Tax Credit Carryforward, Amount | $ 900 |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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