CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (4,565)	$ (3,266)
Loss from discontinued operations, net of taxes	2,818	456
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	23	4
Loss on trading securities	11	8
Gain on sale of assets	(11)
Stock-based compensation	73	189
Changes in operating assets and liabilities:
Accounts receivable	(337)	131
Inventories, net		(60)
Value added tax receivable, net	2,003	(878)
Prepaid expenses and other assets	42	(8)
Right-of-use assets	24	101
Accounts payable and other accrued liabilities	1,140	1,225
Other current liabilities	(269)	(233)
Asset retirement and reclamation liabilities		(6)
Other long-term liabilities	(9)	(22)
Net cash provided by (used in) operating activities - continuing operations	943	(2,359)
Net cash used in operating activities - discontinued operations	(2,385)	(320)
Net cash used in operating activities	(1,442)	(2,679)
Cash flows from investing activities:
Proceeds from sale of assets	19	4
Net cash provided by investing activities - continuing operations	19	4
Net cash provided by investing activities - discontinued operations	92	3
Net cash provided by investing activities	111	7
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issuance costs		701
Net cash provided by financing activities - continuing operations		701
Net cash provided by financing activities		701
Net decrease in cash and cash equivalents	(1,331)	(1,971)
Cash and cash equivalents, beginning of period	3,766	3,972
Cash and cash equivalents, end of period	2,435	2,001
Supplemental disclosure:
Interest paid	$ 5	8
Supplemental disclosure of non-cash transactions:
Deferred equity offering costs amortized		$ 23