MINERAL PROPERTY EXPENDITURES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Mineral property expenses	$ 12	$ 12	$ 18	$ 77
Total expense for the period	764	832	1,942	2,258
(Less) Mineral Property expenses attributable to Discontinued Operations	(752)	(820)	(1,924)	(2,181)
Mineral Property expenses for Continued Operations	12	12	18	77
Kingsville Dome Project, Texas
Total expense for the period	291	203	735	592
Rosita Project, Texas
Total expense for the period	158	237	371	455
Vasquez Project, Texas
Total expense for the period	95	85	456	397
Other Projects, Texas
Total expense for the period	17	5	20	(4)
Total Texas Projects
Total expense for the period	561	530	1,582	1,440
Cebolleta Project, New Mexico
Total expense for the period	150		291	440
Juan Tafoya Project, New Mexico
Total expense for the period	41	40	50	49
West Largo
Total expense for the period		13		13
Lithium Holdings In Utah And Nevada
Claim maintenance, permits and fees		200
Uranium Properties In Texas And New Mexico
Payment of mineral property expenses			1,900	1,900
Total New Mexico Projects
Total expense for the period	191	53	341	502
Columbus Basin Project, Nevada
Total expense for the period		126		127
Total Nevada Projects
Total expense for the period		126		127
Sal Rica Project, Utah
Total expense for the period		111	1	112
Total Utah Projects
Total expense for the period		111	1	112
Coosa Project, Alabama
Total expense for the period	12	12	18	77
Total Alabama Projects
Total expense for the period	$ 12	$ 12	$ 18	$ 77