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v3.20.2

Subsequent Events (Details) |  |  |  |  |  |  |  |  |  |  | 9 Months Ended |  |  |  |  |  |  |  |  |  |
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Oct. 29, 2020 USD ($) miningClaim $ / shares shares | Oct. 09, 2020 USD ($) | Oct. 08, 2020 USD ($) | Oct. 05, 2020 USD ($) | Oct. 02, 2020 USD ($) | Oct. 01, 2020 USD ($) promissoryNote | Jun. 04, 2020 USD ($) | May 22, 2020 USD ($) $ / shares | May 21, 2020 USD ($) miningClaim | Feb. 25, 2020 USD ($) | Sep. 30, 2020 USD ($) $ / shares | Sep. 30, 2019 USD ($) | Sep. 29, 2020 $ / shares | Sep. 08, 2020 USD ($) | Aug. 06, 2020 USD ($) promissoryNote | Dec. 31, 2019 USD ($) | Dec. 30, 2019 USD ($) | Dec. 19, 2019 USD ($) | Nov. 18, 2019 USD ($) | Oct. 14, 2019 USD ($) | Aug. 30, 2019 USD ($) | May 31, 2019 USD ($)
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of convertible preferred stock |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  | $ 0 |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,475,000 |  |  |  |  |  |  |  |
Loss on early retirement of GF Comstock debenture |  |  |  |  |  |  |  |  |  |  | (67,127) | $ (284,647) |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  | $ 4,765,254 |  |  |  |  | 5,412,074 |  |  |  |  |  |
Net smelter return percentage |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |  |
Tonogold Resources, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of convertible preferred stock |  |  |  |  |  |  |  | $ 7,600,000 |  |  | $ 2,600,000 |  |  |  |  | 6,100,000 | $ 100,000 | $ 500,000 | $ 7,600,000 | $ 750,000 | $ 830,000 | $ 3,920,000
Weighted average conversion price (in dollars per share) |  |  |  |  |  |  |  | 120.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Closing stock price (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.18 |  |  | $ 0.39 |  | $ 0.18 |  |  |  |  |  |  |  |  |
Lease Purchase Option, New Daney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpatented mining claims, purchased | miningClaim |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |  |  |  |  |  |  |  |
Claims purchase price |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire mineral rights |  |  |  |  |  |  | $ 1,000 |  | $ 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Three Promissory Notes | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,475,000 |  |  |  |  |  |  |
Discount on issuance of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 255,000 |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  | $ 4,500,000 |  |  |  |  |  |  |  |  |  |  |
Number of promissory notes | promissoryNote |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |
Tonogold Resources, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of convertible preferred stock |  |  |  |  |  |  |  |  |  |  | $ 6,100,000 |  |  |  |  | $ 6,100,000 |  |  |  |  |  |
Hercules Gold USA LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option to purchase royalties per patented or unpatented claim |  |  |  |  |  |  |  |  |  | $ 750 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock redemption price |  |  |  |  | $ 2,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average conversion price (in dollars per share) |  |  |  |  | 120.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Tonogold Resources, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of convertible preferred stock |  |  |  |  | $ 2,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Como Project Claims |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unpatented mining claims, sold | miningClaim | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration received (in shares) | shares | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net smelter return percentage | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total consideration value | $ 65,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Closing stock price (in dollars per share) | $ / shares | $ 0.65 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Lease Purchase Option, New Daney |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire mineral rights |  |  | $ 85,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Concorde Trust |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | $ 3,680,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of promissory notes | promissoryNote |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Georges Trust |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | $ 3,040,000.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Revised Promissory Note, Concorde Trust [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  | 640,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Jolcover |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal payment, debt amount |  |  |  |  |  | 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount on issuance of debt |  |  |  |  |  | 1,216 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on early retirement of GF Comstock debenture |  |  |  |  |  | $ 7,848 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Three Promissory Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal payment, debt amount |  | $ 500,000 |  | $ 1,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount on issuance of debt |  | 30,213 |  |  | 15,143 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on early retirement of GF Comstock debenture |  |  |  | $ 118,548 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Three Promissory Notes | Unsecured Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Tonogold Resources, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock redemption price |  |  |  |  | $ 2,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average conversion price (in dollars per share) |  |  |  |  | 120.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Hercules Gold USA LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option to purchase royalties per patented or unpatented claim | $ 750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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