GEOGRAPHIC AND SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Long-term assets by reportable segments
Net Property, Plant and Equipment	$ 8,996		$ 8,996		$ 8,995
Restricted cash	807		807		797
Operating lease right-of-use assets	383		383		470
Total long-term assets	10,186		10,186		10,262
Total long-term assets	10,186		10,186		10,262
Statement of Operations, Loss before taxes
Mineral property expenses	12	$ 12	18	$ 77
Product development expenses	1,641	19	1,942	51
General and administrative expenses	1,536	1,003	4,106	3,583
Arbitration expenses	171	146	868	631
Accretion of asset retirement costs			170	353	390
Depreciation and amortization	(19)	3	5	5
Impairment of uranium properties			5,200
Total operating expenses	3,341	1,183	6,939	4,347
Loss from operations	(3,341)	(1,183)	(6,939)	(4,347)
Other income (expense)	(21)	13	7	(384)
Net Loss from Continuing Operations	(3,362)	(1,170)	(6,932)	(4,731)
Corporate
Long-term assets by reportable segments
Net Property, Plant and Equipment	24		24		23
Restricted cash	797		797		787
Operating lease right-of-use assets	383		383		470
Total long-term assets	1,204		1,204		1,280
Total long-term assets	1,204		1,204		1,280
Statement of Operations, Loss before taxes
General and administrative expenses	1,347	936	3,630	3,300
Arbitration expenses	171	146	868	631
Depreciation and amortization	(19)	3	5	5
Total operating expenses	1,499	1,085	4,503	3,936
Loss from operations	(1,499)	(1,085)	(4,503)	(3,936)
Other income (expense)	(21)	13	7	(384)
Net Loss from Continuing Operations	(1,520)	(1,072)	(4,496)	(4,320)
Graphite
Long-term assets by reportable segments
Net Property, Plant and Equipment	8,972		8,972		8,972
Restricted cash	10		10		10
Total long-term assets	8,982		8,982		8,982
Total long-term assets	8,982		8,982		$ 8,982
Statement of Operations, Loss before taxes
Mineral property expenses	12	12	18	77
Product development expenses	1,641	19	1,942	51
General and administrative expenses	189	67	476	283
Total operating expenses	1,842	98	2,436	411
Loss from operations	(1,842)	(98)	(2,436)	(411)
Net Loss from Continuing Operations	$ (1,842)	$ (98)	$ (2,436)	$ (411)