Mineral Rights and Properties	9 Months Ended
Dec. 31, 2022
Mineral Industries Disclosures [Abstract]
Mineral Rights and Properties [Text Block]	NOTE 5 - Mineral Rights and Properties On September 26, 2012, the Company was re-organized with North Homestake Mining Company and acquired the Blind Gold Property located in the Homestake District of South Dakota. In 2018 and 2019, DTRC acquired additional acreage associated with DTRC's City Creek Property and the Tinton Gold Property. In 2020 and 2021, DTRC increased the size of the DTRC's Blind Gold Property, the Tinton Property, the Poorman Anticline Property, the Ragged Top Gold Project, the West Corridor Property, the City Creek Property and added the South Lead/Whistler Gulch Property through a combination of acquisitions and claim staking. On October 26, 2020, the Company completed the purchase of the Maitland Gold Property from Homestake Mining Company of California ("HMCC"), a wholly owned subsidiary of Barrick Gold Corporation ("Barrick"). At closing, DTRC paid Barrick $3.5 million in cash and issued 750,000 shares of DTRC's common stock valued at $1.76 per share, for total consideration of $4.82 million. Additionally, Barrick retained a 2.5% net smelter return ("NSR") royalty on the property. The 2,112 mineral-acre Maitland acquisition is an important component of the Company's exploration and development strategy for the structural corridor that extends from the Homestake Gold Mine to the Company's Blind Gold Property at the northern end of the Homestake District. On September 7, 2021, the Company entered into an option agreement to acquire surface rights and certain facilities in the Homestake District, South Dakota from HMCC. The agreement provides for exclusive access to three extensive historic data sets which chronicle its 145-year exploration and mining history throughout South Dakota. Under the terms of the agreement, DTRC has a three-year option to acquire 4,261 acres of surface rights with attendant facilities and data held by HMCC. In consideration for the option, DTRC made a cash payment of $1.3 million and issued 1 million shares of DTRC common stock valued at $4,850,000 to Barrick and is making annual option payments of $300,000 during the option period. DTRC may exercise the option on or before September 7, 2024, by assuming all of the liabilities and bonds currently held by HMCC in the Homestake District. In addition, on exercise of the option, the Company will issue Barrick 3 million shares of common stock and grant a 2.5% NSR to Barrick with respect to any gold that may be recovered only from the Grizzly Gulch property. On October 14, 2021, the Company entered into an option agreement to acquire Barrick’s interest in the Richmond Hill Property in the Homestake District, South Dakota from LAC Minerals (USA) LLC and HMCC. Under the terms of the agreement, the Company has an option to acquire 2,126 acres of surface and mineral rights with attendant facilities. The Company issued 400,000 DTRC shares of common stock valued at $1,816,000 to Barrick and will make annual option payments of $100,000 during the option period. The option period was originally through September 7, 2024, but in September 2022, the Company amended the option agreement to extend the period during which the Company may exercise the option. As amended, the Company may exercise the option on or before March 7, 2026, by assuming all the liabilities and bonds associated with the Richmond Hill Property. The Company issued 180,000 shares of common stock, valued at $675,000, in consideration for the amendment to the option term. In addition, on exercise of the option, the Company will issue Barrick an additional 400,000 shares of common stock and grant a 1% NSR to Barrick with respect to any gold that may be recovered from the Richmond Hill Property. In total, the Company currently holds eleven brownfield project areas in the district comprised of 1,931 unpatented mining claims (33,475 unpatented acres), the Homestake Option Area (4,261 patented acres), the Richmond Hill Option Area (2,615 patented acres) and additional lands and mineral rights throughout the district (6,364 patented acres) for a combination of surface and mineral lease rights covering a total of 46,226 acres. The Company has not established that any of its projects or properties contain proven or probable gold reserves under S-K 1300. As of December 31, 2022, and March 31, 2022, the carrying cost of Company's mineral properties totaled $78,737,287 and $76,962,958, respectively. As of December 31, 2022, the Company is in the exploration stage and has not commenced amortization of its properties. The Company will capitalize certain costs to its projects when the costs can be specifically attributable to a project, or when it is reasonable to allocate those costs. General regional exploration expenses are not allocated to specific properties.

NOTE 5 - Mineral Rights and Properties

On September 26, 2012, the Company was re-organized with North Homestake Mining Company and acquired the Blind Gold Property located in the Homestake District of South Dakota. In 2018 and 2019, DTRC acquired additional acreage associated with DTRC's City Creek Property and the Tinton Gold Property. In 2020 and 2021, DTRC increased the size of the DTRC's Blind Gold Property, the Tinton Property, the Poorman Anticline Property, the Ragged Top Gold Project, the West Corridor Property, the City Creek Property and added the South Lead/Whistler Gulch Property through a combination of acquisitions and claim staking.

On October 26, 2020, the Company completed the purchase of the Maitland Gold Property from Homestake Mining Company of California ("HMCC"), a wholly owned subsidiary of Barrick Gold Corporation ("Barrick"). At closing, DTRC paid Barrick $3.5 million in cash and issued 750,000 shares of DTRC's common stock valued at $1.76 per share, for total consideration of $4.82 million. Additionally, Barrick retained a 2.5% net smelter return ("NSR") royalty on the property. The 2,112 mineral-acre Maitland acquisition is an important component of the Company's exploration and development strategy for the structural corridor that extends from the Homestake Gold Mine to the Company's Blind Gold Property at the northern end of the Homestake District.

On September 7, 2021, the Company entered into an option agreement to acquire surface rights and certain facilities in the Homestake District, South Dakota from HMCC. The agreement provides for exclusive access to three extensive historic data sets which chronicle its 145-year exploration and mining history throughout South Dakota. Under the terms of the agreement, DTRC has a three-year option to acquire 4,261 acres of surface rights with attendant facilities and data held by HMCC. In consideration for the option, DTRC made a cash payment of $1.3 million and issued 1 million shares of DTRC common stock valued at $4,850,000 to Barrick and is making annual option payments of $300,000 during the option period. DTRC may exercise the option on or before September 7, 2024, by assuming all of the liabilities and bonds currently held by HMCC in the Homestake District. In addition, on exercise of the option, the Company will issue Barrick 3 million shares of common stock and grant a 2.5% NSR to Barrick with respect to any gold that may be recovered only from the Grizzly Gulch property.

On October 14, 2021, the Company entered into an option agreement to acquire Barrick’s interest in the Richmond Hill Property in the Homestake District, South Dakota from LAC Minerals (USA) LLC and HMCC. Under the terms of the agreement, the Company has an option to acquire 2,126 acres of surface and mineral rights with attendant facilities. The Company issued 400,000 DTRC shares of common stock valued at $1,816,000 to Barrick and will make annual option payments of $100,000 during the option period. The option period was originally through September 7, 2024, but in September 2022, the Company amended the option agreement to extend the period during which the Company may exercise the option. As amended, the Company may exercise the option on or before March 7, 2026, by assuming all the liabilities and bonds associated with the Richmond Hill Property. The Company issued 180,000 shares of common stock, valued at $675,000, in consideration for the amendment to the option term. In addition, on exercise of the option, the Company will issue Barrick an additional 400,000 shares of common stock and grant a 1% NSR to Barrick with respect to any gold that may be recovered from the Richmond Hill Property.

In total, the Company currently holds eleven brownfield project areas in the district comprised of 1,931 unpatented mining claims (33,475 unpatented acres), the Homestake Option Area (4,261 patented acres), the Richmond Hill Option Area (2,615 patented acres) and additional lands and mineral rights throughout the district (6,364 patented acres) for a combination of surface and mineral lease rights covering a total of 46,226 acres. The Company has not established that any of its projects or properties contain proven or probable gold reserves under S-K 1300.

As of December 31, 2022, and March 31, 2022, the carrying cost of Company's mineral properties totaled $78,737,287 and $76,962,958, respectively. As of December 31, 2022, the Company is in the exploration stage and has not commenced amortization of its properties. The Company will capitalize certain costs to its projects when the costs can be specifically attributable to a project, or when it is reasonable to allocate those costs. General regional exploration expenses are not allocated to specific properties.