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Note 18 - Income Taxes - Summary of Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Federal tax expense at the statutory rate | $ (196) | $ (325)
Current year permanent differences | 35 | 167
State income taxes, net of federal tax impact | (72) | (102)
Effect of tax rates of foreign subsidiary | 235 | 282
Return to provision | (35) | (132)
Change in valuation allowance | 469 | 876
Research & experimental tax credit expiration | 227 | 182
Income tax expense, net | $ 663 | $ 948

X
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to current year payment difference. + References No definition available. + Details
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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