Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Employee Stock Compensation Plans (Details Narrative) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 20, 2023	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Jun. 18, 2013
Stock-based compensation expense		$ 100,000	$ 125,000	$ 167,000	$ 251,000
Unrecognized stock option compensation cost related to non-vested options		$ 581,000		$ 581,000
Unrecognized stock option compensation cost related to non-vested options, period of recognition				21 months
2023 Plan
Common stock, capital shares reserved for future issuance	5,000,000
Average remaining contractual life of Solitario's outstanding options	10 years
2013 Plan [Member]
Common stock, capital shares reserved for future issuance							5,750,000
Stock Option \| 2023 Plan
Stock option outstanding		3,600,000		3,600,000		3,600,000
Options, vested and exercisable price per share amount		$ 0.51		$ 0.51		$ 0.85
Options, vested and exercisable		1,900,000		1,900,000		1,412,500
Aggregate intrinsic value		$ 204,000		$ 204,000
Average remaining contractual life of Solitario's outstanding options				3 years 7 months 2 days
Stock Option \| 2013 Plan [Member]
Stock option outstanding		1,825,000		1,825,000		1,965,000
Number expired unexercised shares				50,000
Stock options, exercise prices		$ 0.67	$ 0.20	$ 0.69	$ 0.20
Options granted		90,000	250,000	90,000	1,028,500
Proceeds from stock options exercised			$ 50,000	$ 61,000	$ 206,000
Options, vested and exercisable price per share amount		$ 0.60		$ 0.60		$ 0.69
Aggregate intrinsic value, granted			$ 104,000	$ 13,000	$ 437,000
Aggregate intrinsic value		$ 274,000		$ 274,000
Average remaining contractual life of Solitario's outstanding options				1 year 2 months 8 days