CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating Activities:
Net loss	$ (13,438)	$ (15,505)
Reconciliation of net loss to cash used in operations:
Non-cash lease expense	(1)	2
Accretion of asset retirement obligations		170
Costs incurred for restoration and reclamation activities		(501)
Depreciation and amortization	3	41
Stock compensation expense	594	170
Unrealized (gain) on equity securities	(1,918)
Impairment of uranium properties	0	5,200
Effect of changes in operating working capital items:
Decrease/(Increase) in prepaids and other assets	55	(29)
Increase/(Decrease) in payables and accrued liabilities	1,665	318
Net Cash Used In Operating Activities	(13,040)	(10,134)
Cash Flows From Investing Activities:
Proceeds from PPP loan escrow	333
Building deposit	(245)
Capital expenditures	(119)	(107)
Net Cash Used In Investing Activities	(31)	(107)
Cash Flows From Financing Activities:
Proceeds from note payable		331
Issuance of common stock, net	81,865	13,530
Payment of minimum withholding taxes on net share settlements of equity awards	(150)
Net Cash Provided By Financing Activities	81,715	13,861
Net increase in Cash, Cash Equivalents and Restricted Cash	68,644	3,620
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	50,325	5,667
Cash, Cash Equivalents and Restricted Cash, End of Period	$ 118,969	$ 9,287