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Income Taxes NOL and credit carryovers (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Operating Loss Carryforwards [Line Items] |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 9.0 | $ 10.0
Federal NOL carryover valuation allowance | (7.0) |
Federal NOL carryover | 9.0 |
Operating Loss Carryforwards |  |
State Credit Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Federal NOL carryover valuation allowance | (2.0) |
Federal NOL carryover | 4.0 |
Canadian Capital Loss Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Valuation Allowance | (4.0) |
Federal NOL carryover | 4.0 |
Chile Capital Loss Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Valuation Allowance | (1.0) |
Federal NOL carryover | 1.0 |
Operating Loss Carryforwards | $ 2.0 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + 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
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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