Consolidated Statements of Changes in Shareholders’ Equity (Parentheticals)	12 Months Ended
Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Purchase of noncontrolling interest	30.00%

Percentage of purchase of noncontrolling interest.

No definition available.

Name:	reto_PurchaseOfNoncontrollingInterest
Namespace Prefix:	reto_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration