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Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Property Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2020
Buildings [Member]
Property, Plant and equipment, estimated useful lives	20 years
Machinery and Equipment [Member]
Property, Plant and equipment, estimated useful lives	10 years
Office and Electric Equipment [Member]
Property, Plant and equipment, estimated useful lives	3 years

X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=WETH_OfficeAndElectricEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: