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OTHER LONG-TERM LIABILITIES - Schedule of Other Long-Term Liabilities and Deferred Credits (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other long-term liabilities and deferred credits	$ 500	$ 500
Royalties Payable [Member]
Other long-term liabilities and deferred credits	$ 500	$ 500

X

- Definition

Carrying amount as of the balance sheet date of unearned revenue or income, not otherwise specified in the taxonomy, which is expected to be taken into income after one year or beyond the normal operating cycle, if longer and noncurrent obligations not separately disclosed in the balance sheet (other liabilities, noncurrent).

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=wwr_RoyaltiesPayableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: