XML 45 R26.htm IDEA: XBRL DOCUMENT
v3.22.4

THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Inventory and Other Information (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) t | Jun. 22, 2021 a
Alabama Graphite |  |
Inventory [Line Items] |  |
Acres of land under lease | a |  | 70
Natural Flake Graphite Concentrate |  |
Inventory [Line Items] |  |
Raw material (in metric tons) | t | 603 |
Value of raw material | $ | $ 0.8 |

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

X
- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_InventoryRawMaterials
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Acres of land under lease. + References No definition available. + Details
Name: | wwr_AcresOfLandUnderLease
Namespace Prefix: | wwr_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the raw material of natural flake graphite concentrate provided by a third-party vendor. + References No definition available. + Details
Name: | wwr_InventoryRawMaterial
Namespace Prefix: | wwr_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=wwr_AlabamaGraphiteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=wwr_NaturalFlakeGraphiteConcentrateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |