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Interim Financial Statements - Narrative (Details) - USD ($)
3 Months Ended
Jun. 07, 2019
May 03, 2019
Apr. 09, 2019
Feb. 25, 2019
Apr. 03, 2018
Mar. 31, 2019
Mar. 31, 2018
Jun. 18, 2019
Feb. 28, 2019
Feb. 26, 2019
Dec. 31, 2018
Line of Credit Facility [Line Items]                      
Accumulated deficit           $ 233,920,235         $ 232,085,170
Net loss           1,835,065 $ 2,484,903        
Net cash used in operating activities           892,544 1,098,927        
Cash and cash equivalents           310,596         488,657
Current assets           10,088,038         8,564,262
Current liabilities           3,876,159         $ 2,389,722
Current working capital           6,200,000          
Proceeds non-refundable deposits           1,950,000 0        
Expense reimbursements           200,000 $ 200,000        
Comstock Industrial LLC                      
Line of Credit Facility [Line Items]                      
Proceeds from sale of property       $ 7,200,000              
Downtown Silver Springs, LLC                      
Line of Credit Facility [Line Items]                      
Proceeds from sale of property       $ 2,500,000              
Tonogold Resources, Inc.                      
Line of Credit Facility [Line Items]                      
Payments made to the company         $ 2,000,000            
Line of Credit | Loan Commitment Agreement Due 2021                      
Line of Credit Facility [Line Items]                      
Unused borrowing capacity           $ 9,500,000          
Interest rate                 11.00%    
Secured Debt | Senior Secured Debenture due 2021                      
Line of Credit Facility [Line Items]                      
Proceeds used to reduce indebtedness         $ 1,400,000            
Comstock Industrial LLC, General Partner                      
Line of Credit Facility [Line Items]                      
Right to receive carried interest percentage of general partner from sale of property       3.00%              
Shelf Offering                      
Line of Credit Facility [Line Items]                      
Aggregate offering price, up to                 $ 50,000,000 $ 50,000,000  
Murray FO | 2019 Equity Agreement                      
Line of Credit Facility [Line Items]                      
Authorized amount of stock available for sale                 $ 5,000,000.0    
Discount to the volume weighted average sales price of aggregate offering price                 10.00%    
Subsequent Event                      
Line of Credit Facility [Line Items]                      
Expense reimbursements     $ 200,000                
Subsequent Event | Comstock Industrial LLC, General Partner                      
Line of Credit Facility [Line Items]                      
Right to receive carried interest percentage of general partner from sale of property               3.00%      
Tonogold Agreement | Subsequent Event                      
Line of Credit Facility [Line Items]                      
Proceeds non-refundable deposits $ 2,400,000 $ 2,400,000                  
Proceeds used to reduce indebtedness   $ 1,600,000