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Employee Stock Compensation Plans (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jun. 20, 2023	Jun. 18, 2013
Unrecognized stock option compensation cost related to non-vested options	$ 841,000
Unrecognized stock option compensation cost related to non-vested options, period of recognition	25 months
Average remaining contractual life of Solitario's outstanding options	2 years 10 months 24 days
Average remaining contractual life of Solitario's vested options	2 years 2 months 12 days
Stock options granted	2,125,000	50,000
2023 Plan [Member]
Stock options granted	2,175,000
2013 Plan [Member]
Common stock, capital shares reserved for future issuance			5,000,000	5,750,000
2013 Plan [Member] \| Stock Option [Member]
Award vesting rights on grant date, percentage	25.00%
Award vesting rights, percentage	25.00%
Stock option exercised in period, shares	250,000	1,486,500
Proceeds from stock options exercised	$ 54,000	$ 459,000
Aggregate intrinsic value per share	$ 0.59	$ 0.56
Employee stock option expense	$ 666,000	$ 247,000