CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS AND SUPPLEMENTAL CASH FLOW INFORMATION - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Operating Activities:
Net loss		$ (1,834)	$ (3,137)	$ (7,783)	$ (27,012)
Reconciliation of net loss to cash used in operations:
Non-cash lease expense				8
Accretion of asset retirement obligations		197	133	353	401	$ 993
Decrease in restoration and reclamation accrual				(334)	(485)
Amortization of note receivable discount				(299)	(507)
Amortization of non-cash investor relations fee					21
Depreciation and amortization		23	27	71	94
Stock compensation expense				255	308
Common stock issued for consulting services					95
Common stock issued for purchase of lithium mineral interests					114
Impairment of uranium properties					17,968
Gain on disposal of uranium assets				(729)	(11)
Loss on sale of marketable securities			391	720	484
Effect of changes in operating working capital items:
Decrease in prepaids and other				105	195
Increase (decrease) in payables and accrued liabilities				441	(697)
Net Cash Used In Operating Activities				(7,192)	(9,032)
Cash Flows From Investing Activities
Proceeds from the sale of securities, net				536	834
Proceeds from sale of uranium assets, net				2,470	11
Proceeds from note receivable				750	1,134
Acquisition of Alabama Graphite, net of cash acquired					(1,547)
Net Cash Provided By Investing Activities				3,756	432
Cash Flows From Financing Activities:
Issuance of common stock, net	$ 4,800			2,628	5,917
Payment of minimum withholding taxes on net share settlements of equity awards				(1)	(5)
Net Cash Provided By Financing Activities				2,627	5,912
Net decrease in cash, cash equivalents and restricted cash				(809)	(2,688)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	$ 4,500			5,309	7,722	7,722
Cash, Cash Equivalents and Restricted Cash, End of Period		$ 4,500	$ 5,034	4,500	5,034	$ 5,309
Cash Paid During the Period for:
Interest				4	7
Supplemental Non-Cash Information with Respect to Investing and Financing Activities:
Securities received for payment of notes receivable – Laramide				750	750
Common stock issued for acquisition of Alabama Graphite					6,394
Stock options and warrants issued for acquisition of Alabama Graphite					89
Common stock issued for consulting services					95
Common stock issued for purchase of lithium mineral interests					114
Total Non-Cash Investing and Financing Activities for the Period				$ 750	$ 7,442