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COMMON STOCK - Warrants (Details) - shares |  | 6 Months Ended
--- | --- | ---
Oct. 06, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Warrants |  |  |
Warrants outstanding at beginning of period |  | 0 | 197,622
Issued |  | 0 | 0
Expired |  | 0 | (11,440)
Warrants outstanding at end of period |  | 0 | 186,182
Lincoln Park |  |  |
Warrants |  |  |
Issued | 118,799 |  |
Exercised | 182,515 |  |

X
- 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

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- 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

X
- 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

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