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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS AND SUPPLEMENTAL CASH FLOW - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net Loss	$ (3,480)	$ (2,467)	$ (8,870)	$ (5,754)
Reconciliation of net loss to cash used in operations:
Non-cash lease expense				2
Accretion of asset retirement obligations				138
Costs incurred for restoration and reclamation activities				(167)
Depreciation and amortization			2	30
Stock compensation expense			295	28
Unrealized (gain) on equity securities			(1,411)
Gain on disposal of fixed assets				(21)
Effect of changes in operating working capital items:
(Increase) in prepaids and other assets			(74)	(148)
(Decrease)/Increase in payables and accrued liabilities			925	(173)
Net Cash Used In Operating Activities			(9,133)	(6,065)
Cash Flows From Investing Activities
Proceeds from PPP loan escrow			333
Building deposit			(100)
Capital expenditures				(87)
Net Cash Provided By Investing Activities			233	(87)
Cash Flows From Financing Activities:
Proceeds from note payable				331
Net proceeds from common stock			77,863	6,291
Payment of minimum withholding taxes on net share settlements of equity awards			(150)
Net Cash Provided By Financing Activities			77,713	6,622
Net increase in cash, cash equivalents and restricted cash			68,813	470
Cash, Cash Equivalents and Restricted Cash, Beginning of Period			50,325	5,667
Cash, Cash Equivalents and Restricted Cash, End of Period	$ 119,138	$ 6,137	$ 119,138	$ 6,137

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