Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]

Schedule of Property, Plant and Equipment

	Net Book Value of Property, Plant and Equipment at March 31, 2016
(thousands of dollars)	Turkey	Texas	New Mexico	Corporate	Total
Uranium plant	$                -	$       8,626	$                -	$               -	$            8,626
Mineral rights and properties	17,968	1,513	19,102	-	38,583
Other property, plant and equipment	22	1,319	-	180	1,521
Total	$      17,990	$     11,458	$      19,102	$          180	$           48,730
	Net Book Value of Property, Plant and Equipment at December 31, 2015
(thousands of dollars)	Turkey	Texas	New Mexico	Corporate	Total
Uranium plant	$                -	$       8,653	$                -	$               -	$            8,653
Mineral rights and properties	17,968	1,513	19,102	-	38,583
Other property, plant and equipment	22	1,352	-	202	1,576
Total	$      17,990	$     11,518	$     19,102	$          202	$          48,812