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Related Party Transactions (Details) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Aug. 31, 2022
Related Party Transactions (Details) [Line Items]
Cost of revenue related parties		$ 85,170
Subsequent Event [Member]
Related Party Transactions (Details) [Line Items]
Accounts receivable balance			$ 86,219

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- Definition

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

+ References

No definition available.

+ Details

Name:	reto_AccountsReceivableBalance
Namespace Prefix:	reto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	reto_CostOfRevenueRelatedParty
Namespace Prefix:	reto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	reto_RelatedPartyTransactionsDetailsLineItems
Namespace Prefix:	reto_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: