XML 35 R23.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Capital reserve | 12 Months Ended
--- | ---
Dec. 31, 2021
ZHEJIANG TIANLAN |
Capital reserve | 15 Capital reserve Capital reserve represents capital contributions from shareholders in excess of the paid-in capital amount and capitalization of gain on disposal of subsidiaries to the shareholders in previous years.

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: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |