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6. Accounts receivable, net (Details) In Thousands, unless otherwise specified | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2014 ZHEJIANG TIANLAN CNY | Dec. 31, 2013 ZHEJIANG TIANLAN CNY | Dec. 31, 2014 ZHEJIANG JIAHUAN CNY | Dec. 31, 2013 ZHEJIANG JIAHUAN CNY | Dec. 31, 2012 ZHEJIANG JIAHUAN CNY
--- | --- | --- | --- | --- | --- | --- | ---
Accounts receivable | $ 4,316 us-gaap_AccountsReceivableGross | $ 4,151 us-gaap_AccountsReceivableGross | 185,453 us-gaap_AccountsReceivableGross / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 166,433 us-gaap_AccountsReceivableGross / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 74,024 us-gaap_AccountsReceivableGross / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 75,445 us-gaap_AccountsReceivableGross / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member |
Less: Allowance for doubtful debts | (48)us-gaap_AllowanceForDoubtfulAccountsReceivable | (69)us-gaap_AllowanceForDoubtfulAccountsReceivable | (28,835)us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (19,306)us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | (131)us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | (8,000)us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | (8,461)us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member
Net | $ 4,268 us-gaap_AccountsReceivableNet | $ 4,082 us-gaap_AccountsReceivableNet | 156,618 us-gaap_AccountsReceivableNet / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 147,127 us-gaap_AccountsReceivableNet / us-gaap_StatementScenarioAxis = us-gaap_SubsidiaryIssuerMember | 73,893 us-gaap_AccountsReceivableNet / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member | 67,445 us-gaap_AccountsReceivableNet / us-gaap_StatementScenarioAxis = CLWT_Subsidiary2Member |

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- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.5) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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