Note 6 - Income Taxes (Details Textual) $ in Thousands |
3 Months Ended |
|---|---|
|
Mar. 31, 2021
USD ($)
| |
| Deferred Tax Assets, Valuation Allowance, Total | $ 0 |
| Internal Revenue Service (IRS) [Member] | |
| Open Tax Year | 2007 |
| Domestic Tax Authority [Member] | |
| Operating Loss Carryforwards, Total | $ 3,600 |
| State and Local Jurisdiction [Member] | |
| Operating Loss Carryforwards, Subject to Expiration | 3,500 |
| Foreign Tax Authority [Member] | |
| Operating Loss Carryforwards, Subject to Expiration | $ 2,800 |
| X | ||||||||||
- Definition Amount of operating loss carryforward subject to expiration, before tax effects, available to reduce future taxable income under enacted tax laws. No definition available.
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| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
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