Summary of Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Basis of Presentation [Policy Text Block]	Basis of Presentation These financial statements of the Company have been prepared, without audit, in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and the rules of the U.S. Securities and Exchange Commission ("SEC") for interim financial statements, and should be read in conjunction with the Company's audited financial statements and the notes thereto for the year ended December 31, 2024, included in our Annual Report on Form 10-K, as filed with the SEC on March 20, 2025. In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of financial position and the results of operations for the interim periods presented have been reflected herein. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year. Notes to the financial statements which would substantially duplicate the disclosures contained in the audited financial statements for the most recent year ended December 31, 2024, as reported in the Company's Annual Report on Form 10-K, have been omitted. The condensed consolidated balance sheet as of December 31, 2024 was derived from the audited financial statements of the Company and in accordance with the instructions to Form 10-Q, certain information and footnote disclosures required by GAAP have been condensed or omitted.
Basis of Consolidation [Policy Text Block]	Basis of Consolidation These financial statements for the three and six months ended June 30, 2025 and 2024 include the accounts of the Company and the following 100%-owned subsidiaries: DTRC, LLC (incorporated in the U.S.), JR Resources (Canada) Services Corp. (incorporated in Canada), Dakota Gold Holdings LLC (incorporated in the U.S.) and Dakota Gold (Canada) Services Corp. (incorporated in Canada). All intercompany accounts and transactions between us and our subsidiaries have been eliminated upon consolidation.
Recently issued accounting pronouncements [Policy Text Block]	Recently issued accounting pronouncements In December 2023, the Financial Accounting Standards Board issued Accounting Standards Update 2023-09 ("ASU 2023-09"), Income Taxes (Topic 740): Improvements to Income Tax Disclosures, requiring entities to disclose more detailed information about income tax expense (benefit), significant components of income tax expense (benefit), and separate disclosure of income tax expense (benefit) for domestic and foreign jurisdictions and by major jurisdictions. The Company adopted ASU 2023-09 as of January 1, 2025, and the corresponding impacts will be reflected in the annual disclosures connected to income taxes. The Company has implemented all new accounting pronouncements in effect which may impact its financial statements and does not believe there are any other new pronouncements issued that have a material impact on its financial position or results of operations.
Subsequent Events [Policy Text Block]	Subsequent Events The Company evaluated events after June 30, 2025 and through the date the financial statements were issued and determined any events and transactions occurring during this period that would require recognition or disclosure are appropriately addressed in these financial statements.

Summary of Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2025

Basis of Presentation [Policy Text Block]

Basis of Presentation

These financial statements of the Company have been prepared, without audit, in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and the rules of the U.S. Securities and Exchange Commission ("SEC") for interim financial statements, and should be read in conjunction with the Company's audited financial statements and the notes thereto for the year ended December 31, 2024, included in our Annual Report on Form 10-K, as filed with the SEC on March 20, 2025.

In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of financial position and the results of operations for the interim periods presented have been reflected herein. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year. Notes to the financial statements which would substantially duplicate the disclosures contained in the audited financial statements for the most recent year ended December 31, 2024, as reported in the Company's Annual Report on Form 10-K, have been omitted. The condensed consolidated balance sheet as of December 31, 2024 was derived from the audited financial statements of the Company and in accordance with the instructions to Form 10-Q, certain information and footnote disclosures required by GAAP have been condensed or omitted.

Basis of Consolidation [Policy Text Block]

Basis of Consolidation

These financial statements for the three and six months ended June 30, 2025 and 2024 include the accounts of the Company and the following 100%-owned subsidiaries: DTRC, LLC (incorporated in the U.S.), JR Resources (Canada) Services Corp. (incorporated in Canada), Dakota Gold Holdings LLC (incorporated in the U.S.) and Dakota Gold (Canada) Services Corp. (incorporated in Canada). All intercompany accounts and transactions between us and our subsidiaries have been eliminated upon consolidation.

Recently issued accounting pronouncements [Policy Text Block]

Recently issued accounting pronouncements

In December 2023, the Financial Accounting Standards Board issued Accounting Standards Update 2023-09 ("ASU 2023-09"), Income Taxes (Topic 740): Improvements to Income Tax Disclosures, requiring entities to disclose more detailed information about income tax expense (benefit), significant components of income tax expense (benefit), and separate disclosure of income tax expense (benefit) for domestic and foreign jurisdictions and by major jurisdictions. The Company adopted ASU 2023-09 as of January 1, 2025, and the corresponding impacts will be reflected in the annual disclosures connected to income taxes.

The Company has implemented all new accounting pronouncements in effect which may impact its financial statements and does not believe there are any other new pronouncements issued that have a material impact on its financial position or results of operations.

Subsequent Events [Policy Text Block]

Subsequent Events

The Company evaluated events after June 30, 2025 and through the date the financial statements were issued and determined any events and transactions occurring during this period that would require recognition or disclosure are appropriately addressed in these financial statements.