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v3.22.2.2

Unaudited Condensed Consolidated Statements of Changes in Equity (Parentheticals) | 6 Months Ended
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Jun. 30, 2022
Statement of Stockholders' Equity [Abstract] |
Purchase of noncontrolling interest | 30.00%

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- Definition Percentage of purchase of noncontrolling interest. + References No definition available. + Details
Name: | reto_PurchaseOfNoncontrollingInterest
Namespace Prefix: | reto_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration