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v3.20.2

COMMON STOCK - Warrants (Details) - shares |  | 9 Months Ended
--- | --- | ---
Oct. 06, 2020 | Sep. 30, 2020 | Sep. 30, 2019
Class of Warrant or Right [Line Items] |  |  |
Warrants outstanding at beginning of period |  | 186,182 | 197,621
Issued |  | 0 | 0
Expired |  | 0 | 0
Warrants outstanding at end of period |  | 186,182 | 197,621
Lincoln Park |  |  |
Class of Warrant or Right [Line Items] |  |  |
Issued | 118,799 |  |
Warrants exercised (in shares) | 182,515 |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Number of warrants or rights expired. + References No definition available. + Details
Name: | wwr_ClassOfWarrantOrRightExpired
Namespace Prefix: | wwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of warrants or rights issued. + References No definition available. + Details
Name: | wwr_ClassOfWarrantOrRightIssued
Namespace Prefix: | wwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of warrants for which notice of exercise is provided. + References No definition available. + Details
Name: | wwr_NumberOfWarrantsForWhichNoticeOfExerciseIsProvided
Namespace Prefix: | wwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CounterpartyNameAxis=wwr_LincolnParkCapitalFundLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |