CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating activities:
Net loss	$ (1,454)	$ (1,492)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	14	13
Amortization of right of use lease asset	20	21
Stock-based compensation expense	251	415
Realized and unrealized gain on sale of marketable equity securities	(586)	(310)
Loss on derivative instruments	336	21
Changes in operating assets and liabilities:
Prepaid expenses and other	(163)	(364)
Accounts payable and other current liabilities	181	126
Net cash used in operating activities	(1,401)	(1,570)
Investing activities:
(Purchase) sale of short-term investments, net	(4,300)	388
Purchase of mineral property	0	(55)
Purchase of other assets	0	(12)
Cash from sale of marketable equity securities	1,507	54
Cash paid for settlement of derivative instruments	(403)	0
Sale of derivative instruments	0	39
Net cash (used) provided by investing activities	(3,196)	414
Financing activities:
Issuance of common stock - net of issuing costs	4,505	1,218
Issuance of common stock upon exercise of stock options	206	14
Net cash provided by financing activities	4,711	1,232
Net increase in cash and cash equivalents and restricted cash	114	76
Cash, cash equivalents and restricted cash, beginning of period	311	200
Cash, cash equivalents and restricted cash, end of period	$ 425	$ 276