XML 57 R41.htm IDEA: XBRL DOCUMENT
v3.25.2

Note 6 - Stockholders' Equity - Summary of Grants Awarded (Details) shares in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2025 $ / shares shares
Restricted stock, January 15, 2025 [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Number of Shares granted awarded, Shares | shares | 325,016
Grant date fair value per share | $ / shares | $ 5.41
Grant date | Jan. 15, 2025
Restricted Stock, March 24, 2025 [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Number of Shares granted awarded, Shares | shares | 23,826
Grant date fair value per share | $ / shares | $ 5.87
Grant date | Mar. 24, 2025
Restricted Stock, June 23, 2025 [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Number of Shares granted awarded, Shares | shares | 1,613,885
Grant date fair value per share | $ / shares | $ 5.82
Grant date | Jun. 23, 2025
Performance based, June 23, 2025 [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Number of Shares granted awarded, Shares | shares | 840,205
Grant date fair value per share | $ / shares | $ 0.06
Grant date | Jun. 23, 2025

X
- Definition Share-Based Compensation Arrangement by Share-Based Payment Award Date + References No definition available. + Details
Name: | hl_ShareBasedCompensationArrangementByShareBasedPaymentAwardDate
Namespace Prefix: | hl_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- 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 No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=hl_RestrictedStockJanuaryFifteenTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=hl_RestrictedStockMarchTwentyFourTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=hl_RestrictedStockJuneTwentyThreeTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=hl_PerformanceSharesOneJuneTwentyThreeTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |