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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Operating Activities: |  |
Net Loss | $ (23,574) | $ (10,565)
Reconciliation of net loss to cash used in operations: |  |
Non-cash lease expense | 2 | 9
Accretion of asset retirement obligations | 201 | 390
Costs incurred for restoration and reclamation activities | (1,262) | (293)
Amortization of note receivable discount |  | (299)
Depreciation and amortization. | (55) | 73
Stock compensation expense | 367 | 98
Impairment of uranium properties | 5,200 | 143
Gain/loss on disposal of uranium properties | 2,665 | (729)
Gain on disposal of fixed assets | (21) |
Loss on sale of marketable securities |  | 720
Effect of changes in operating working capital items: |  |
Decrease in prepaids and other assets | 8 | 246
Increase in payables and accrued liabilities | 1,286 | 158
Net Cash Used In Operating Activities | (15,183) | (10,049)
Cash Flows From Investing Activities |  |
Cash transferred for disposal of uranium assets, net | (4,023) | 2,470
Proceeds from the sale of securities, net |  | 536
Proceeds from note receivable |  | 750
Capital expenditures | (81) |
Net Cash (Used In)/Provided By Investing Activities | (4,104) | 3,756
Cash Flows From Financing Activities: |  |
Proceeds from note payable | 331 |
Issuance of common stock, net | 63,614 | 6,652
Payment of minimum withholding taxes on net share settlements of equity awards |  | (1)
Net Cash Provided By Financing Activities | 63,945 | 6,651
Net increase in cash, cash equivalents and restricted cash | 44,658 | 358
Cash, Cash Equivalents and Restricted Cash, Beginning of Period | 5,667 | 5,309
Cash, Cash Equivalents and Restricted Cash, End of Period | 50,325 | 5,667
Cash Paid During the Period for: |  |
Interest | 7 | 6
Supplemental Non-Cash Information with Respect to Investing and Financing Activities: |  |
Securities received for payment of notes receivable – Laramide |  | 750
Securities received from sale of uranium assets - enCore | 1,520 |
Total Non-Cash Investing and Financing Activities for the Period | $ 1,520 | $ 750

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- Definition Gain on sale of uranium properties. + References No definition available. + Details
Name: | wwr_GainOnSaleOfProperties
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Non cash investing and financing activities. + References No definition available. + Details
Name: | wwr_NonCashInvestingAndFinancingActivities
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of non-cash lease expenses. + References No definition available. + Details
Name: | wwr_NonCashLeaseExpense
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Securities received for payment of notes receivable. + References No definition available. + Details
Name: | wwr_SecuritiesReceivedForPaymentOfNotesReceivable
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of securities received from sale of uranium assets noncash investing or financing activities. + References No definition available. + Details
Name: | wwr_SecuritiesReceivedFromSaleOfAssets
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration