Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

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

Schedule of Property, Plant and Equipment

	Net Property, Plant and Equipment at December 31, 2016
(thousands of dollars)	Turkey	Texas	New Mexico	Corporate	Net book value
Uranium plant	$              -	$       8,459	$                    -	$               -	$            8,459
Mineral rights and properties	17,968	-	19,102	-	37,070
Other property, plant and equipment	22	1,224	-	141	1,387
Total net book value	$     17,990	$       9,683	$          19,102	$          141	$          46,916
	Net Property, Plant and Equipment at December 31, 2015
(thousands of dollars)	Turkey	Texas	New Mexico	Corporate	Net book value
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 net book value	$     17,990	$     11,518	$          19,102	$          202	$          48,812

Summary of Impairment Expense by Project

The Company recorded the following impairment charges for 2016 and 2015 related to its uranium projects and processing facilities:

	For the years ended December 31,
	2016	2015
Kingsville Dome project	$                   160	$                   160
Butler Ranch project	579	-
Sejita Dome project	534	-
Nell project	209	-
Jack Pump project	191	-
Alta Mesa Este project	-	800
Total Impairment	$                1,673	$                   960

Schedule of Mineral Property Expenditures

The Company spent the following amounts for each of its material properties:

	For the year ended December 31,
	2016	2015
	(thousands of dollars)
Temrezli project, Turkey	$                  498	$                  407
Total Turkey projects	498	407
Kingsville Dome project, Texas	779	812
Rosita project, Texas	402	711
Vasquez project, Texas	461	510
Butler Ranch project, Texas	12	443
Other projects, Texas	94	553
Total Texas projects	1,748	3,029
Crownpoint project, New Mexico	5	5
Churchrock project, New Mexico	20	21
Cebolleta project, New Mexico	138	537
Juan Tafoya project, New Mexico	47	384
Other projects, New Mexico	5	87
Total New Mexico projects	215	1,034
Columbus Basin project, Nevada	232	-
Other projects, Nevada	31	-
Total Nevada projects	263	-
Sal Rica project, Utah	524	-
Total Utah projects	524	-
Total expense for the period	$               3,248	$               4,470