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Assets and Liabilities Held for Sale - Narrative (Details) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 01, 2022 USD ($) | Sep. 01, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Sep. 26, 2020 a | Sep. 08, 2020 | Sep. 26, 2019 USD ($) a
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  | $ 6,328,338 |  | $ 6,328,338 |  | $ 10,512,066 |  |  |
Impairment expense |  |  |  |  |  |  | 500,000 |  |  |
Lessee option to purchase underlying asset, amount |  | $ 2,700,000 |  |  |  |  |  |  |  |
Depreciation expense |  |  | 800,000 | $ 400,000 | 1,100,000 | $ 1,100,000 |  |  |  |
Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment expense |  |  |  |  |  |  | 500,000 |  |  |
Tonogold Resources, Inc. |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Sale of membership interest |  |  |  |  |  |  |  |  | 100.00% |
Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from assets held for sale |  |  |  |  | 400,000 |  |  |  |  |
Industrial, land and senior water rights |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Area of land | a |  |  |  |  |  |  |  | 98 |  |
Commercial land |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Area of land | a |  |  |  |  |  |  |  | 160 |  |
Daney Ranch (Land and buildings) |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Lease payments |  | 9,000 |  |  |  |  |  |  |  |
Lessee option to purchase underlying asset, amount |  | $ 2,700,000 |  |  |  |  |  |  |  |
Depreciation expense |  |  | 500,000 |  |  |  |  |  |  |
Daney Ranch (Land and buildings) | Forecast |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Lease payments | $ 10,000 |  |  |  |  |  |  |  |  |
Gold Hill Hotel (Land and buildings) |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Depreciation expense |  |  | 200,000 |  |  |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  | 6,328,338 |  | 6,328,338 |  | 10,512,066 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Number of properties sold | a |  |  |  |  |  |  |  |  |  | 2
Disposal Group, Held-for-sale, Not Discontinued Operations | Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  |  |  |  |  |  |  |  | $ 3,600,000
Disposal Group, Held-for-sale, Not Discontinued Operations | Industrial, land and senior water rights | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Area of land | a |  |  |  |  |  |  |  |  |  | 98
Disposal Group, Held-for-sale, Not Discontinued Operations | 98 Acres | Downtown Silver Springs, LLC Equity Purchase Agreement | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  |  |  |  |  |  |  |  | $ 6,500,000
Disposal Group, Held-for-sale, Not Discontinued Operations | Commercial land | Silver springs |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Area of land | a |  |  |  |  |  |  |  |  |  | 160
Disposal Group, Held-for-sale, Not Discontinued Operations | Daney Ranch (Land and buildings) |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  | 0 |  | 0 |  | 2,146,575 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Gold Hill Hotel (Land and buildings) |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |
Total assets held for sale |  |  | $ 0 |  | $ 0 |  | $ 478,366 |  |  |

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