Prepaids and deposits (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Prepaids: | ||
| Surety bond fees | $ 1,174 | $ 560 |
| Insurance | 1,020 | 1,215 |
| License fees | 393 | 405 |
| Mining claims fees and permit fees | 217 | 569 |
| Services | 126 | 22 |
| Deposits | 182 | 182 |
| Total | 3,112 | 2,953 |
| Prepaids, non-current: | ||
| Insurance | 22 | 37 |
| Total | $ 22 | $ 37 |
| X | ||||||||||
- Definition Prepaid Insurance, Noncurrent No definition available.
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| X | ||||||||||
- Definition Prepaid Mining Claims, Current No definition available.
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| X | ||||||||||
- Definition Prepaid Services, Current No definition available.
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| X | ||||||||||
- Definition Prepaid Subscription and License Fees No definition available.
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| X | ||||||||||
- Definition Prepaid Surety Bond Fees, Current No definition available.
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| X | ||||||||||
- Definition Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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