Prepaids and deposits - Components of Prepaids and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Prepaids:
Insurance	$ 1,215	$ 1,215
Mining claims and permit fees	569	564
Surety bond fees	560	553
License fees	405	324
Other	22	28
Deposits	182	179
Total	2,953	2,863
Prepaids, non-current:
Insurance	37	0
Royalty – advance payment on Crofoot Royalty	0	600
Total	$ 37	$ 600

Prepaid Insurance, Noncurrent

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- Definition

Prepaid Mining Claims, Current

+ References

No definition available.

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- Definition

Prepaid Subscription and License Fees

+ References

No definition available.

+ Details

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- Definition

Prepaid Surety Bond Fees, Current

+ References

No definition available.

+ Details

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- Definition

The amount paid to music publishers, record producers, songwriters, or other artists in advance of their earning royalties from record or music sales. Such an amount is based on contractual terms and is generally nonrefundable. This amount is expected to be consumed after one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 928
-SubTopic 340
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477426/928-340-45-1

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- 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.

+ References

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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-Topic 340
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483032/340-10-45-1

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- 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.

+ References

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- References

No definition available.

+ Details

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- 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.

+ References

+ Details

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- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (g)(1)
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-Topic 340
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-Topic 340
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-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482955/340-10-05-5

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