Condensed Consolidated Statements of Operations and Comprehensive Income/(Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating Expenses:
Mineral property expenses	$ (769)	$ (731)
General and administrative expenses	(1,668)	(2,145)
Accretion of asset retirement obligations	(132)	(120)
Depreciation and amortization	(38)	(82)
Total operating expenses	(2,607)	(3,078)
Non-Operating Income/(Expenses):
Loss on sale of marketable securities		(116)
Loss on extinguishment of convertible debt	(39)
Gain on disposal of uranium properties	4,422
Interest income/(expense)	52	(743)
Commitment fees		(333)
Other income/(expense), net	17	(3)
Total other income/(expense)	4,452	(1,195)
Net Income/(Loss)	1,845	(4,273)
Other Comprehensive Income/(Loss)
Unrealized fair value increase/(decrease) on available-for-sale securities	430	(49)
Transfer to realized loss upon sale of available-for-sale securities		116
Comprehensive Income/(Loss)	$ 2,275	$ (4,206)
BASIC AND DILUTED INCOME/(LOSS) PER SHARE	$ 0.09	$ (0.86)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING	21,601,847	4,967,896