XML 99 R87.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Note 12 - Stockholders' Equity - Details of Warrants Outstanding (Details) | Dec. 31, 2023 $ / shares shares
--- | ---
Warrant Expiring in February 2029 [Member] |
Number of warrants (in shares) | shares | 2,068,000
Exercise price (in dollars per share) | $ / shares | $ 1.57
Warrants Expiring in April 2032 [Member] |
Number of warrants (in shares) | shares | 2,068,000
Exercise price (in dollars per share) | $ / shares | $ 8.02

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=hl_WarrantExpiringInFebruary2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=hl_WarrantsExpiringInApril2032Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |