CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Activities:
Net loss	$ (16,144)	$ (23,574)
Reconciliation of net loss to cash used in operations:
Non-cash lease expense	(2)	2
Accretion of asset retirement obligations		201
Costs incurred for restoration and reclamation activities		(1,262)
Depreciation and amortization	20	(55)
Stock compensation expense	879	367
Gain on equity securities	(2,057)
Impairment of uranium properties	0	5,200
Gain on disposal of uranium properties		2,665
Gain on disposal of fixed assets		(21)
Effect of changes in operating working capital items:
Decrease/(Increase) in prepaids and other assets	101	8
Increase/(Decrease) in payables and accrued liabilities	287	1,286
Net Cash Used In Operating Activities	(16,916)	(15,183)
Cash Flows From Investing Activities:
Cash transferred for disposal of uranium assets, net		(4,023)
Proceeds from PPP loan escrow	333
Proceeds from the sale of equity securities, net	3,577
Cash deposits on long lead construction items	2,665
Capital expenditures	(3,353)	(81)
Net Cash Used In Investing Activities	(2,108)	(4,104)
Cash Flows From Financing Activities:
Proceeds from note payable		331
Issuance of common stock, net	84,142	63,614
Payment of minimum withholding taxes on net share settlements of equity awards	(150)
Net Cash Provided By Financing Activities	83,992	63,945
Net increase in Cash, Cash Equivalents and Restricted Cash	64,968	44,658
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	50,325	5,667
Cash, Cash Equivalents and Restricted Cash, End of Period	115,293	50,325
Supplemental Non-Cash Information with Respect to Investing and Financing Activities:
Securities received from sale of uranium assets - enCore		1,520
Land grant received from local municipalities	1,378
Accrued capital expenditures (at end of period)	782
Total Non-Cash Investing and Financing Activities for the Period	$ 2,160	$ 1,520