XML 46 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Capital reserve | 12 Months Ended
--- | ---
Dec. 31, 2017
ZHEJIANG TIANLAN |
Capital reserve | Capital reserve represents capital contributions from shareholders in excess of the paid-in capital amount.

X
- References No definition available. + Details
Name: | CLWT_CapitalReserveTextblock
Namespace Prefix: | CLWT_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_SubsidiaryIssuerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |