XML 116 R104.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Land use right net (Details) - ZHEJIANG TIANLAN - CNY (¥) ¥ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Land use right, gross | ¥ 7,361 | ¥ 7,361
Less: accumulated amortization | (2,364) | (2,214)
Land use right, net | ¥ 4,997 | ¥ 5,147

X
- References No definition available. + Details
Name: | clwt_FiniteLivedIntangibleAssetContractualRightNetLandUseRight
Namespace Prefix: | clwt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | clwt_LandUseRightAccumulatedAmortisation
Namespace Prefix: | clwt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of an intangible asset that arises from a contractual arrangement with a third party (not including franchise rights and license agreements). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedContractualRightsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |