XML 138 R28.htm IDEA: XBRL DOCUMENT
v3.24.1

Asset Retirement Obligations (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Asset Retirement Obligations |
Schedule of Asset Retirement Obligations |
|  | 2023 |  |  | 2022 |
Balance at January 1 |  | $ | 262,217 |  |  | $ | 172,348 |
Accretion expense |  |  | 15,952 |  |  |  | 12,691 |
Change in asset retirement obligation estimate |  |  | 8,479 |  |  |  | 77,178 |
Balance at December 31 |  | $ | 286,648 |  |  | $ | 262,217 |

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

X
- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration