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COMMITMENTS AND CONTINGENCIES (Details)	12 Months Ended
	Dec. 31, 2019 property lb
Number of properties excluded from the sales contract | property	2
Itochu Corporation
Acquisition amount on sales contracts	510,000
UG U.S.A Inc
Acquisition amount on sales contracts	480,000

X

- Definition

Acquisition on sales contracts in quantity.

+ References

No definition available.

+ Details

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Namespace Prefix:	wwr_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of properties excluded from the sales contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	wwr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=wwr_ItochuCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=wwr_UgU.s.aIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: