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v2.4.1.9

4. Income taxes (Details 1) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2014 ZHEJIANG TIANLAN CNY | Dec. 31, 2013 ZHEJIANG TIANLAN CNY | Dec. 31, 2012 ZHEJIANG TIANLAN CNY | Dec. 31, 2014 ZHEJIANG JIAHUAN CNY | Dec. 31, 2013 ZHEJIANG JIAHUAN CNY | Dec. 31, 2012 ZHEJIANG JIAHUAN CNY
Income before income taxes | $ (879)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | $ (157)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | $ 13 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 25,438 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 7,961 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 933 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 5,194 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 2,327 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 1,535 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Computed tax using respective companies’ statutory tax rates | (194)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | (49)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 31 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 3,797 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 1,194 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 140 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 1,299 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 582 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 384 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Change in valuation allowances | 93 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 124 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 166 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance |  |  |  |  |  |
Under(over) -provision for income tax in prior years | 0 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | 0 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | 0 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | (2,208)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (123)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 1,358 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (278)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 0 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 0 us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Temporary differences |  |  |  | 1,575 CLWT_TemporaryDifferences / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (445)CLWT_TemporaryDifferences / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 0 CLWT_TemporaryDifferences / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember |  |  |
Tax effect on revenue not subject to tax |  |  |  | (695)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (242)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (56)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (537)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | (20,983)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | (20,291)CLWT_TaxEffectOnRevenueNotSubjectToTax / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Non deductible expenses | 119 us-gaap_IncomeTaxReconciliationNondeductibleExpense | (2)us-gaap_IncomeTaxReconciliationNondeductibleExpense | (55)us-gaap_IncomeTaxReconciliationNondeductibleExpense | 90 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 2,279 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 992 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 0 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 20,455 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 19,907 us-gaap_IncomeTaxReconciliationNondeductibleExpense / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Others |  |  |  |  |  |  | 0 us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | (35)us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 0 us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Total provision for income tax at effective tax rate | $ 18 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate | $ 73 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate | $ 142 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate | 2,559 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 2,663 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 2,434 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 484 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 19 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 0 CLWT_TotalProvisionForIncomeTaxAtEffectiveTaxRate / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51673353&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
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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 increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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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 nondeductible expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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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 other nondeductible expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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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 revisions of previously reported income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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