Subsequent Events	12 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Solitario has evaluated events subsequent to December 31, 2020 to assess the need for potential recognition or disclosure in this report. Such events were evaluated through the date these financial statements were available to be issued. In January 2021, Solitario extended its lease on its Wheat Ridge, Colorado office space for a period of 32 months and the Wheat Ridge, Colorado office lease now expires on October 31, 2023. As of January 25, 2021, the commencement date of the lease extension Solitario has total minimum lease payments of $110,000, with a net present value of $103,000, using Solitario’s estimated cost of capital of 5% at the commencement date of the lease extension. In February 2021 Solitario entered into an at-the-market offering agreement (the “ATM Agreement”) with H.C. Wainwright & Co., LLC (“Wainwright”), establishing an at-the-market equity program (the “ATM Program”). Pursuant to the ATM Program, Solitario may, from time-to-time issue and sell shares of our common stock (the “Shares”) to the public through Wainwright on the NYSE American stock exchange up to $9,000,000 aggregate sales price through the ATM Program. Solitario will determine, at its sole discretion, the timing and number of the Shares to be sold. We are not obligated to make any sales of Shares under the ATM Agreement.

Subsequent Events

12 Months Ended

Dec. 31, 2020

Solitario has evaluated events subsequent to December 31, 2020 to assess the need for potential recognition or disclosure in this report. Such events were evaluated through the date these financial statements were available to be issued.

In January 2021, Solitario extended its lease on its Wheat Ridge, Colorado office space for a period of 32 months and the Wheat Ridge, Colorado office lease now expires on October 31, 2023. As of January 25, 2021, the commencement date of the lease extension Solitario has total minimum lease payments of $110,000, with a net present value of $103,000, using Solitario’s estimated cost of capital of 5% at the commencement date of the lease extension.

In February 2021 Solitario entered into an at-the-market offering agreement (the “ATM Agreement”) with H.C. Wainwright & Co., LLC (“Wainwright”), establishing an at-the-market equity program (the “ATM Program”). Pursuant to the ATM Program, Solitario may, from time-to-time issue and sell shares of our common stock (the “Shares”) to the public through Wainwright on the NYSE American stock exchange up to $9,000,000 aggregate sales price through the ATM Program. Solitario will determine, at its sole discretion, the timing and number of the Shares to be sold. We are not obligated to make any sales of Shares under the ATM Agreement.