Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Equity Issuances On July 9, 2020, the Company entered into a common stock purchase agreement with Triton Funds L.P., (the “Triton”) and filed a prospectus supplement to offer and sell shares of common stock at an aggregate offering price of up to $1.25 million, from time to time, to Triton with aggregate unused capacity of $1.25 million. On July 22, 2020, the Company issued 2,040,483 common shares to Triton for net proceeds of $1.25 million, at a price of $0.61 per share. On July 13, 2020, the Company entered into a new equity purchase agreement (the “Leviston Equity Agreement”) with Leviston Resources LLC (“Leviston”) and filed a prospectus supplement to offer and sell shares of common stock at an aggregate offering price of up to $2.5 million, from time to time, to Leviston, and paid 5% fee by issuing 173,611 restricted common shares. From July 13, 2020, through July 31, 2020, the Company raised $0.65 million by issuing 1,029,741 common shares at a price of $0.63 per common share. As of July 31, 2020, the Leviston Equity Agreement has an aggregate unused capacity of $1.9 million. Repayment of Senior Secured Debenture and Refinancing On August 6, 2020, Comstock Mining Inc. (the “Company”), agreed to enter into three promissory notes (the “Promissory Notes”) in order to refinance existing indebtedness on more favorable terms. The Promissory Notes are unsecured and have an aggregate principal amount of $4,475,000 (net of an original discount of $255,000), a per annum interest rate of 12% and a maturity date of September 20, 2021. Interest is payable monthly on the Promissory Notes. Principal is payable in full on the maturity date and contains covenants that prohibit the Company from incurring debt that matures prior to the maturity date or that is senior in right of their payment and require the Company to prepay the Promissory Notes with at least 80% of the net cash proceeds received by the Company with respect to the sale of the Company’s non-mining assets in Silver Springs, NV. The Company is permitted to defer payment of up to 34% of the principal payment due on the maturity date of the Promissory Note for an additional two years (i.e., until September 20, 2023), in exchange for two year warrants to purchase the Company’s common stock based on a 10% discount to the 20-day VWAP of the Company’s common stock on the maturity date of the Promissory Note. The net proceeds of the Promissory Note will be used to fully repay the Company’s existing 11% Senior Secured Debenture due December 25, 2020 (the “Debenture”) and for general corporate purposes. Upon repayment of the Debenture all collateral previously securing the Debenture shall be released. In addition, the Company received an accelerated $400,000 amortization payment from Tonogold, originally due in October 2020. Tonogold still owes the Company $4,475,000, which payment remains secured by all assets of Comstock Mining LLC, the entity that owns the Lucerne mine, until paid in full. The Tonogold obligation to us matures on the same day as the Promissory Notes discussed above. Events of default on the Promissory Note include insolvency and failure to pay. The default interest rate on the Promissory Notes is an additional 5% above the stated rate. The Promissory Notes can be repaid at any time without penalty or premium. One of the Promissory Notes was sold to an employee of the Company.