| Balance Sheets | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Investments in marketable equity securities, at fair value | NaN | NaN | 357 | 401 |
| Cash and cash equivalents | 167 | 82 | 372 | 195 |
| Short-term investments | 8,275 | 7,573 | 7,573 | 8,823 |
| Investments in marketable equity securities, at fair value | 237 | 294 | NaN | NaN |
| Prepaid expenses and other current assets | 171 | 61 | 68 | 229 |
| Total current assets | 8,850 | 8,010 | 8,370 | 9,648 |
| Mineral properties | 16,732 | 16,732 | 16,706 | 16,701 |
| Restricted cash - mineral property reclamation bonds | 230 | 230 | 230 | 230 |
| Other assets | 48 | 58 | 66 | 84 |
| Total assets | 25,860 | 25,030 | 25,372 | 26,663 |
| Accounts payable | 271 | 208 | 467 | 461 |
| Kinross call option liability | NaN | 0 | 0 | 0 |
| Operating lease liability | 0 | 7 | 18 | 29 |
| Total current liabilities | 271 | 215 | 485 | 490 |
| Asset retirement obligation and reclamation liabilities | 145 | 145 | 145 | 145 |
| Total long-term liabilities | 145 | 145 | 145 | 145 |
| Common stock, 0.01 par value, authorized 200,000,000 shares (92,541,749 and 90,901,324 shares, respectively, issued and outstanding at march 31, 2026 and december 31, 2025) | 925 | 909 | 906 | 900 |
| Additional paid-in capital | 91,856 | 90,604 | 90,170 | 89,592 |
| Accumulated deficit | -67,337 | -66,843 | -66,334 | -64,464 |
| Total shareholders' equity | 25,444 | 24,670 | 24,742 | 26,028 |
| Total liabilities and shareholders' equity | 25,860 | 25,030 | 25,372 | 26,663 |
SOLITARIO RESOURCES CORP. (XPL)
SOLITARIO RESOURCES CORP. (XPL)