Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

	Net Property, Plant and Equipment at December 31, 2017
(thousands of dollars)	Turkey		Texas		New Mexico		Corporate		Net book value
Uranium plant	$	-	$	8,304	$	-	$	-	$	8,304
Mineral rights and properties-Uranium		17,968		-		7,806		-		25,774
Other property, plant and equipment		11		1,109		-		211		1,331
Total net book value	$	17,979	$	9,413	$	7,806	$	211	$	35,409

	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-Uranium		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

Summary of Impairment Expense by Project

The Company recorded the following impairment charges for 2017 and 2016 related to its uranium projects and processing facilities:

	For the years ended December 31,
	2017		2016
	(thousands of dollars)
Kingsville Dome project	$	140	$	160
Butler Ranch project		-		579
Sejita Dome project		-		534
Nell project		-		209
Jack Pump project		-		191
Cebolleta/Juan Tafoya project		11,296		-
Total Impairment	$	11,436	$	1,673

Schedule of Mineral Property Expenses

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

	For the year ended December 31,
	2017		2016
	(thousands of dollars)
Temrezli project, Turkey	$	261	$	498
Total Turkey projects		261		498
Kingsville Dome project, Texas		810		779
Rosita project, Texas		590		402
Vasquez project, Texas		572		461
Butler Ranch project, Texas		21		12
Other projects, Texas		50		94
Total Texas projects		2,043		1,748
Crownpoint project, New Mexico		-		5
Churchrock project, New Mexico		-		20
Cebolleta project, New Mexico		538		138
Juan Tafoya project, New Mexico		528		47
Other projects, New Mexico		14		5
Total New Mexico projects		1,080		215
Columbus Basin project, Nevada		866		232
Railroad Valley, Nevada		238		-
Other projects, Nevada		3		31
Total Nevada projects		1,107		263
Sal Rica project, Utah		93		524
Total Utah projects		93		524
Total expense for the period	$	4,584	$	3,248