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Mineral Rights and Properties (Narrative) (Details)
 1 Months Ended 9 Months Ended 12 Months Ended
Oct. 14, 2021
USD ($)
a
shares
Sep. 07, 2021
USD ($)
a
shares
Oct. 26, 2020
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
a
Dec. 31, 2021
USD ($)
Mar. 31, 2022
USD ($)
Property, Plant and Equipment [Line Items]            
Area of land | a       46,226    
Payment to purchase mineral property       $ 1,099,329 $ 6,179,873 $ 8,650,700
DTRC common stock issued for purchase of mineral property       675,000   10,380,464
Mineral properties       $ 78,737,287   $ 76,962,958
Richmond Hill Property [Member]            
Property, Plant and Equipment [Line Items]            
Area of land | a       2,615    
DTRC common stock issued for purchase of mineral property $ 675,000          
Common stock issued for investment in mineral properties (Shares) | shares 180,000          
Surface Rights And Certain Residual Facilities [Member]            
Property, Plant and Equipment [Line Items]            
Area of land | a       6,364    
Homestake Gold Mine [Member]            
Property, Plant and Equipment [Line Items]            
Area of land | a       4,261    
Nine Brownfield Project Areas [Member]            
Property, Plant and Equipment [Line Items]            
Unpatented claims held       $ 1,931    
Area of land | a       33,475    
Barrick Gold Corporation [Member] | Maitland Gold Property [Member]            
Property, Plant and Equipment [Line Items]            
DTRC common stock issued for purchase of mineral property     $ 3,500,000      
Stock issued during period, shares, purchase of assets | shares     750,000      
Issued price per share | $ / shares     $ 1.76      
Asset acquisition, consideration transferred     $ 4,820,000      
Percentage of net smelter return royalty owned     2.50%      
Barrick Gold Corporation [Member] | Richmond Hill Property [Member]            
Property, Plant and Equipment [Line Items]            
Area of land | a 2,126          
DTRC common stock issued for purchase of mineral property $ 1,816,000          
Stock issued during period, shares, purchase of assets | shares 400,000          
Asset acquisition, consideration transferred $ 100,000          
Additional shares to be issued upon exercise of option | shares 400,000          
Percentage of net smelter return royalty owned 1.00%          
Barrick Gold Corporation [Member] | Surface Rights And Certain Residual Facilities [Member]            
Property, Plant and Equipment [Line Items]            
Area of land | a   4,261        
Payment to purchase mineral property   $ 1,300,000        
DTRC common stock issued for purchase of mineral property   $ 4,850,000        
Stock issued during period, shares, purchase of assets | shares   1,000,000        
Asset acquisition, consideration transferred   $ 300,000        
Additional shares to be issued upon exercise of option | shares   3,000,000        
Percentage of net smelter return royalty owned   2.50%