Employee Stock Compensation Plans	9 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Stock Compensation Plans	9. Employee Stock Compensation Plans On August 24, 2016, the holders of options to acquire Solitario common stock voluntarily surrendered for cancellation all options previously granted to such persons pursuant to the 2013 Solitario Exploration and Royalty Corp Omnibus Stock and Incentive Plan (the “2013 Plan”) and the 2006 Stock Option Incentive Plan (the “2006 Plan”). Solitario cancelled the options upon surrender. As a result, there are no outstanding options under either the 2006 Plan or the 2013 Plan as of September 30, 2016. Historically, stock option awards at the time of grant had a five year term and vested 25% on date of grant and 25% on each of the next three anniversary dates. Solitario recognizes stock option compensation expense on the date of grant for 25% of the grant date fair value, and subsequently, based upon a straight line amortization of the unvested grant date fair value of each of its outstanding options. During the three and nine months ended September 30, 2016, Solitario recorded $939,000 and $970,000, respectively, of stock option expense for the amortization, through the date of cancellation of previously outstanding options, of grant date fair value with a credit to additional paid-in-capital, including $721,000 of unamortized grant date fair value as of the date of cancellation of options during the three and nine months ended September 30, 2016, discussed below.. During the three and nine months ended September 30, 2015, Solitario recorded $157,000 and $470,000, respectively, of stock option expense for the amortization of grant date fair value with a credit to additional paid-in-capital. The 2006 Plan On June 27, 2006 Solitario’s shareholders approved the 2006 Plan. Under the terms of the 2006 Plan an aggregate of 2,800,000 shares were initially reserved for the award of options. As of June 26, 2016, in accordance with the terms of the 2006 Plan, no additional awards may be made pursuant to the 2006 Plan. As of September 30, 2016 there are no outstanding stock options under the 2006 Plan. During the nine months ended September 30, 2016, Solitario granted options to acquire 350,000 shares of common stock under the 2006 Plan. By their initial terms the options vested 25% on the date of grant and thereafter were to vest 25% on each of the next three anniversary dates of the date of grant, and had a grant date fair value based upon a Black-Scholes model with a 63% expected volatility, and 1% risk-free interest rate. These options were subsequently surrendered by the holders and cancelled on August 24, 2016. As a result of the cancellation, Solitario recognized $84,000 of unamortized grant date fair value as of the date of the cancellation under the 2006 Plan. No options were granted during the three and nine months ended September 30, 2015. No options were exercised during the three and nine months ended September 30, 2016 or 2015 under the 2006 Plan. The 2013 Plan On June 18, 2013, Solitario’s shareholders approved the 2013 Plan. Under the terms of the 2013 Plan, an aggregate of 1,750,000 shares are currently reserved for awards to directors, officers, employees and consultants. Such awards may take the form of stock options, stock appreciation rights, restricted stock, and restricted stock units. On July 28, 2016, the Board of Directors granted 1,699,000 stock options under the 2013 Plan. These options were subsequently surrendered by the holders and cancelled on August 24, 2016. As a result of the cancellation, Solitario recognized $637,000 of unamortized grant date fair value as of the date of the cancellation under the 2013 Plan. As of September 30, 2016 there were no outstanding stock options or other awards under the 2013 Plan. There were no exercises of options or awards under the 2013 Plan during the three and nine months ended September 30, 2016 and 2015. There were no stock awards or option grants under the 2013 Plan during the three and nine months ended September 30, 2015.

Employee Stock Compensation Plans

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

9. Employee Stock Compensation Plans

On August 24, 2016, the holders of options to acquire Solitario common stock voluntarily surrendered for cancellation all options previously granted to such persons pursuant to the 2013 Solitario Exploration and Royalty Corp Omnibus Stock and Incentive Plan (the “2013 Plan”) and the 2006 Stock Option Incentive Plan (the “2006 Plan”). Solitario cancelled the options upon surrender. As a result, there are no outstanding options under either the 2006 Plan or the 2013 Plan as of September 30, 2016.

Historically, stock option awards at the time of grant had a five year term and vested 25% on date of grant and 25% on each of the next three anniversary dates. Solitario recognizes stock option compensation expense on the date of grant for 25% of the grant date fair value, and subsequently, based upon a straight line amortization of the unvested grant date fair value of each of its outstanding options. During the three and nine months ended September 30, 2016, Solitario recorded $939,000 and $970,000, respectively, of stock option expense for the amortization, through the date of cancellation of previously outstanding options, of grant date fair value with a credit to additional paid-in-capital, including $721,000 of unamortized grant date fair value as of the date of cancellation of options during the three and nine months ended September 30, 2016, discussed below.. During the three and nine months ended September 30, 2015, Solitario recorded $157,000 and $470,000, respectively, of stock option expense for the amortization of grant date fair value with a credit to additional paid-in-capital.

The 2006 Plan

On June 27, 2006 Solitario’s shareholders approved the 2006 Plan. Under the terms of the 2006 Plan an aggregate of 2,800,000 shares were initially reserved for the award of options. As of June 26, 2016, in accordance with the terms of the 2006 Plan, no additional awards may be made pursuant to the 2006 Plan. As of September 30, 2016 there are no outstanding stock options under the 2006 Plan.

During the nine months ended September 30, 2016, Solitario granted options to acquire 350,000 shares of common stock under the 2006 Plan. By their initial terms the options vested 25% on the date of grant and thereafter were to vest 25% on each of the next three anniversary dates of the date of grant, and had a grant date fair value based upon a Black-Scholes model with a 63% expected volatility, and 1% risk-free interest rate. These options were subsequently surrendered by the holders and cancelled on August 24, 2016. As a result of the cancellation, Solitario recognized $84,000 of unamortized grant date fair value as of the date of the cancellation under the 2006 Plan. No options were granted during the three and nine months ended September 30, 2015. No options were exercised during the three and nine months ended September 30, 2016 or 2015 under the 2006 Plan.

The 2013 Plan

On June 18, 2013, Solitario’s shareholders approved the 2013 Plan. Under the terms of the 2013 Plan, an aggregate of 1,750,000 shares are currently reserved for awards to directors, officers, employees and consultants. Such awards may take the form of stock options, stock appreciation rights, restricted stock, and restricted stock units.

On July 28, 2016, the Board of Directors granted 1,699,000 stock options under the 2013 Plan. These options were subsequently surrendered by the holders and cancelled on August 24, 2016. As a result of the cancellation, Solitario recognized $637,000 of unamortized grant date fair value as of the date of the cancellation under the 2013 Plan. As of September 30, 2016 there were no outstanding stock options or other awards under the 2013 Plan. There were no exercises of options or awards under the 2013 Plan during the three and nine months ended September 30, 2016 and 2015. There were no stock awards or option grants under the 2013 Plan during the three and nine months ended September 30, 2015.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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