Subsequent Events (Details)	Apr. 03, 2018 USD ($) $ / T
Tonogold Resources, Inc. \| Subsequent Event
Subsequent Event [Line Items]
Payments made to the company	$ 2,000,000
Tonogold Resources, Inc. \| Scenario, Forecast
Subsequent Event [Line Items]
Payments made to the company	$ 2,200,000.0
Comstock Mining LLC \| Scenario, Forecast
Subsequent Event [Line Items]
Percentage interest in subsidiary	100.00%
Comstock Mining LLC \| Tonogold Resources, Inc. \| Scenario, Forecast
Subsequent Event [Line Items]
Percentage interest in subsidiary	51.00%
American Flat Property \| Tonogold Resources, Inc. \| Scenario, Forecast
Subsequent Event [Line Items]
Payments made to the company	$ 25,000,000
Percentage interest in subsidiary	51.00%
Usage fee	$ 1,000,000
Royalty Revenue, Per Ton Processed \| $ / T	1
Land Improvements \| Lucerne Property \| Tonogold Resources, Inc. \| Scenario, Forecast
Subsequent Event [Line Items]
Required capital expenditures	$ 20,000,000
Required capital expenditure, maximum period	42 months
Senior Secured Debenture due 2021 \| Secured Debt \| Subsequent Event
Subsequent Event [Line Items]
Proceeds used to reduce indebtedness	$ 1,400,000

Payments to Acquire Property, Plant, and Equipment, To Earn Ownership Interest

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Payments to Acquire Property, Plant, and Equipment, To Earn Ownership Interest, Maximum Period

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Royalty Revenue, Per Ton Processed

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 230
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-URI http://asc.fasb.org/extlink&oid=6513228

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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