XML 200 R28.htm IDEA: XBRL DOCUMENT v3.26.1

Income taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income taxes

Schedule of components of net loss

​

​	​	​	​	​	​	​
​	​	December 31,
​	​ ​ ​	2025		​ ​ ​	2024
United States	​	$	(99,863)	​	$	(7,577)
Canada	​		(529)	​		(6,906)
Total	​	$	(100,392)	​	$	(14,483)

Schedule of provision (benefit) for income taxes

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​ ​ ​	December 31,
​	​ ​ ​	2025				​ ​ ​	2024				​
Income tax benefit computed at statutory rate of 21%	​	$	(21,082)	​ ​ ​	(21.0)	%	$	(3,041)	​ ​ ​	(21.0)	%
Idaho state income tax, net of federal income tax effect	​		619	​	0.6	​		154	​	1.1	​
Foreign tax effects - Canada	​		(14)	​	—	​		(11)	​	(0.1)	​
Valuation allowance	​		22,472	​	22.4	​		2,272	​	15.7	​
Nontaxable or nondeductible items:	​	​	​	​	​	​	​	​	​	​	​
Share based compensation	​	​	(1,889)	​	(1.9)	​	​	616	​	4.2	​
Other	​		152	​	0.2	​		7	​	—	​
Other adjustments	​	​	(258)	​	(0.3)	​		3	​	—	​
Total	​	$	—	​	—	​	$	—	​	—	​

​

Schedule of components of deferred tax assets

​

​	​	​	​	​	​	​
​	​	December 31,
​	​ ​ ​	2025		​ ​ ​	2024
Net operating loss carryforward – U.S.	​	$	44,018	​	$	42,705
Net operating loss carryforward – CAD	​		12,441	​		12,440
Buildings and equipment	​		179	​		380
Mineral interest and properties	​		50,334	​		24,499
Financing costs	​	​	5,425	​	​	881
CWA settlement payable	​	​	504	​	​	510
Share based compensation	​	​	1,878	​	​	2,102
Other	​		288	​		53
Deferred tax assets	​		115,067	​		83,570
Less valuation allowance	​		(115,067)	​		(83,570)
Net deferred tax assets	​	$	—	​	$	—

Summary of changes in the valuation allowance

​

​	​	​	​	​	​	​
​	​	December 31,
​	​ ​ ​	2025		​ ​ ​	2024
Valuation allowance on deferred tax assets, beginning of year	​	$	(83,570)	​	$	(78,875)
Change related to:	​	​	​	​	​	​
Valuation allowance movement recognized in continuing operations	​		​	​		​
Federal	​	​	(22,472)	​	​	(2,272)
Idaho state	​	​	(4,480)	​	​	(487)
Foreign - Canada	​	​	(1)	​	​	(1,566)
Valuation allowance movement recognized in equity	​		(4,544)	​		(370)
Valuation allowance on deferred tax assets, end of year	​	$	(115,067)	​	$	(83,570)

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-9

+ Details

Name:	us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(1)(Note 1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_SummaryOfValuationAllowanceTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration