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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS AND SUPPLEMENTAL CASH FLOW - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Operating Activities: |  |  |  |  |
Net loss | $ (2,775) | $ (20,457) | $ (5,949) | $ (23,876) |
Reconciliation of net loss to cash used in operations: |  |  |  |  |
Non-cash lease expense |  |  | 7 |  |
Accretion of asset retirement obligations | 30 | 134 | 156 | 268 | $ 993
Amortization of note receivable discount |  |  | (299) | (337) |
Loss on sale of marketable securities |  |  | 720 | 93 |
Costs incurred for restoration and reclamation activities |  |  | (333) | (355) |
Depreciation and amortization | 25 | 33 | 48 | 67 |
Stock compensation expense |  |  | 15 | 162 |
Common stock issued for purchase of lithium mineral interests |  |  |  | 114 |
Common stock issued for consulting services |  |  |  | 95 |
Other income |  |  |  | 5 |
Impairment of uranium properties |  | 17,968 |  | 17,968 |
Effect of changes in operating working capital items: |  |  |  |  |
Decrease in prepaids and other |  |  | 234 | 196 |
Increase (decrease) in payables and deferred credits |  |  | 1,077 | (490) |
Net Cash Used In Operating Activities |  |  | (4,324) | (6,090) |
Cash Flows From Investing Activities: |  |  |  |  |
Deposit for sale of assets |  |  | 1,500 |  |
Proceeds from the sale of marketable securities, net |  |  | 536 | 476 |
Proceeds from disposal of property, plant and equipment |  |  |  | 8 |
Proceeds from note receivable |  |  | 750 | 1,089 |
Note advances for Alabama Graphite corporate merger |  |  |  | (1,547) |
Net Cash Provided By Investing Activities |  |  | 2,786 | 26 |
Cash Flows From Financing Activities: |  |  |  |  |
Issuance of common stock, net |  |  | 1,154 | 4,730 |
Payment of minimum withholding taxes on net share settlements of equity awards |  |  | (1) | (5) |
Net Cash Provided By Financing Activities |  |  | 1,153 | 4,725 |
Net decrease in cash, cash equivalents and restricted cash |  |  | (385) | (1,339) |
Cash, Cash Equivalents and Restricted Cash, Beginning of Period |  |  | 5,309 | 7,722 | 7,722
Cash, Cash Equivalents and Restricted Cash, End of Period | $ 4,924 | $ 6,383 | 4,924 | 6,383 | $ 5,309
Cash Paid During the Period for: |  |  |  |  |
Interest |  |  | 1 | 3 |
Supplemental Non-Cash Information for Investing and Financing Activities: |  |  |  |  |
Securities received for payment of notes receivable - Laramide |  |  | 750 | 750 |
Common stock issued for acquisition of Alabama Graphite |  |  |  | 6,394 |
Stock options and warrants issued for acquisition of Alabama Graphite |  |  |  | 89 |
Common stock issued for consulting services |  |  |  | 95 |
Common stock issued for purchase of lithium mineral interests |  |  |  | 114 |
Total Non-Cash Investing and Financing Activities for the Period |  |  | $ 750 | $ 7,442 |

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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Stock options and warrants issued for acquisition. + References No definition available. + Details
Name: | wwr_StockOptionsAndWarrantsIssuedForAcquisition
Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration