PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Net property, plant and equipment	$ 20,505	$ 20,553
Turkey [Member]
Net property, plant and equipment	7	8
Texas [Member]
Net property, plant and equipment	3,582	3,604
Alabama [Member]
Net property, plant and equipment	8,972	8,973
New Mexico [Member]
Net property, plant and equipment	7,806	7,806
Corporate
Net property, plant and equipment	138	162
Uranium Plant [Member]
Net property, plant and equipment	3,142	3,256
Uranium Plant [Member] | Texas [Member]
Net property, plant and equipment	3,142	3,256
Mineral Rights and Properties [Member]
Net property, plant and equipment	16,778	16,779
Mineral Rights and Properties [Member] | Alabama [Member]
Net property, plant and equipment	8,972	8,973
Mineral Rights and Properties [Member] | New Mexico [Member]
Net property, plant and equipment	7,806	7,806
Other Property Plant and Equipment [Member]
Net property, plant and equipment	585	518
Other Property Plant and Equipment [Member] | Turkey [Member]
Net property, plant and equipment	7	8
Other Property Plant and Equipment [Member] | Texas [Member]
Net property, plant and equipment	440	348
Other Property Plant and Equipment [Member] | Corporate
Net property, plant and equipment	$ 138	$ 162