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SUBSEQUENT EVENTS (Details) - Lake Martin Area Industrial Development Authority - Subsequent Event - Alabama Graphite $ in Millions	Jul. 23, 2021 USD ($) a
Subsequent Event [Line Items]
Acres of land under lease | a	70
Term of lease	10 years
Fair value of land | $	$ 1.4

X

- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Acres of land under lease.

+ References

No definition available.

+ Details

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Namespace Prefix:	wwr_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fair value portion of finance leased asset as of lease inception.

+ References

No definition available.

+ Details

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Namespace Prefix:	wwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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Namespace Prefix:
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X

- Details

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Namespace Prefix:
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X

- Details

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