XML 149 R39.htm IDEA: XBRL DOCUMENT
v3.24.1

Mineral Properties (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Mckinley |  |
Mineral property description | The McKinley-Monarch project is located near the town of Lucille, Idaho. The project consists of 28 unpatented claims totaling 560 acres. The Company started exploring the property in 2013 |
Butte Gulch |  |
Mineral property description | In 2018, the Company purchased the Butte Gulch property near the Golden Chest. This property consists of 177 acres of patented mining claims, some of which include both the surface and mineral rights, and some of which include only the mineral rights. There is an underlying 2% NSR on all ores mined and shipped from any lode production from the patented claims on the Butte property |
Potosi |  |
Mineral property description | In 2018, the Company purchased the Potosi property near the Golden Chest. This property consists of 71 acres of patented mining claims |
Golden Chest |  |
Interest expense | $ 102,727 | $ 48,281
Mineral property description | The Golden Chest is an underground mine project currently producing for the Company located near Murray, Idaho consisting of 86 patented and 217 unpatented mining claims. A 2% NSR is payable on production at certain portions of the Golden Chest to a former joint venture partner. Royalty expense of $272,535 and $181,300 was recognized as costs of sales and other direct production costs in the years ended December 31, 2023, and 2022 |
Park Copper/Gold |  |
Mineral property description | In August 2021, the Company paid $78,000 in cash for 100 acres of patented mineral property in Shoshone County referred to as Park Copper/Gold |
New Jersey |  |
Mineral property description | The Coleman property is located at the New Jersey Mine area of interest and consists of 62 acres of patented mining claims, mineral rights to 108 acres of fee land, 80 acres of land for which the Company owns the surface but not the mineral rights, and approximately 130 acres of unpatented mining claims |

X
- References No definition available. + Details
Name: | njmc_MineralProperties
Namespace Prefix: | njmc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | njmc_MineralsProperties1
Namespace Prefix: | njmc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of interest expense classified as other. + References No definition available. + Details
Name: | us-gaap_InterestExpenseOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=njmc_MckinleyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=njmc_ButteGulchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=njmc_PotosiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=njmc_GoldenChestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=njmc_ParkCopperGoldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=njmc_NewJerseyMineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |