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PROPERTY, PLANT AND EQUIPMENT (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) $ 30,840,899 $ 34,739,746
Percentage of reduction in market prices of long-term uranium 12.00%  
Impairment provision 4,094,612 1,737,359
Book value 96,407,310 100,058,667
Kingsville Dome Project
   
PROPERTY, PLANT AND EQUIPMENT    
Impairment provision 473,525 919,414
Gross area on which entity has mineral leases (in acres) 2,434  
Net area on which entity has mineral leases (in acres) 2,227  
Kingsville Dome Project | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 6.25%  
Annual per acre royalty payable to extend leases not held by production (in dollars per acre) 10  
Kingsville Dome Project | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 9.375%  
Annual per acre royalty payable to extend leases not held by production (in dollars per acre) 30  
Rosita Project
   
PROPERTY, PLANT AND EQUIPMENT    
Impairment provision 2,820,836 138,856
Gross area on which entity has mineral leases (in acres) 3,377  
Net area on which entity has mineral leases (in acres) 3,377  
Vasquez Project
   
PROPERTY, PLANT AND EQUIPMENT    
Impairment provision 276,161 679,089
Gross area on which entity has mineral leases (in acres) 872  
Net area on which entity has mineral leases (in acres) 872  
Vasquez Project | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 6.25%  
Specified price per pound for uranium sales on which royalty is payable at specified percentage (in dollars per pound) 40.00  
Vasquez Project | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 10.25%  
Specified price per pound for uranium sales on which royalty is payable at specified percentage (in dollars per pound) 25.00  
Ambrosia Lake Project
   
PROPERTY, PLANT AND EQUIPMENT    
Impairment provision 511,878  
Other
   
PROPERTY, PLANT AND EQUIPMENT    
Impairment provision 12,212  
Rosita South
   
PROPERTY, PLANT AND EQUIPMENT    
Gross area on which entity has mineral leases (in acres) 1,795  
Net area on which entity has mineral leases (in acres) 1,479  
Rosita Project and Rosita South Property | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 6.25%  
Annual per acre royalty payable to extend leases not held by production (in dollars per acre) 10  
Rosita Project and Rosita South Property | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 18.25%  
Specified price per pound for uranium sales on which royalty is payable at specified percentage (in dollars per pound) 80.00  
Annual per acre royalty payable to extend leases not held by production (in dollars per acre) 30  
Los Finados Project
   
PROPERTY, PLANT AND EQUIPMENT    
Gross area on which entity has mineral leases (in acres) 53,524  
Los Finados/Tecolote Project
   
PROPERTY, PLANT AND EQUIPMENT    
Net area on which entity has mineral leases (in acres) 22,700  
Extension of exploration lease term 2 years  
Churchrock Project
   
PROPERTY, PLANT AND EQUIPMENT    
Gross area on which entity has mineral leases (in acres) 3,458  
Net area on which entity has mineral leases (in acres) 3,458  
Number of parcels 3  
Churchrock Project | Section 17 and Mancos
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 33.00%  
Overriding royalty obligation (as a percent) 2.00%  
Churchrock Project | Section 17 and Mancos | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 5.00%  
Churchrock Project | Section 17 and Mancos | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 6.25%  
Crownpoint Project
   
PROPERTY, PLANT AND EQUIPMENT    
Gross area on which entity has mineral leases (in acres) 640  
Net area on which entity has mineral leases (in acres) 556  
Annual maintenance fee per claim (in dollars per claim) 140.00  
Crownpoint Project | Gallup, New Mexico
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 35  
Crownpoint Project | Churchrock deposits
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 22  
Crownpoint Project | Northwest section 9
   
PROPERTY, PLANT AND EQUIPMENT    
Percentage of section the Company holds mineral rights 25.00%  
Number of unpatented mining claims owned by entity 9  
Crownpoint Project | Southwest section 24
   
PROPERTY, PLANT AND EQUIPMENT    
Percentage of section the Company holds mineral rights 25.00%  
Number of unpatented mining claims owned by entity 10  
Crownpoint Project | Southeast section 24
   
PROPERTY, PLANT AND EQUIPMENT    
Interest earned in project in consideration of investment (as a percent) 40.00%  
Area of land in which mineral fee interest acquired by entity (in acres) 140  
Percentage of mineral fee interest Company owns on additional acres 100.00%  
Additional area of land in which fee interest acquired by entity (in acres) 20  
Percentage of section the Company holds mineral rights 25.00%  
Number of unpatented mining claims owned by entity 2  
Crownpoint Project | Northeast section 25
   
PROPERTY, PLANT AND EQUIPMENT    
Percentage of section the Company holds mineral rights 25.00%  
Number of unpatented mining claims owned by entity 8  
Nose Rock Project
   
PROPERTY, PLANT AND EQUIPMENT    
Area covered under lease (in acres) 6,400  
Royalties on lease based upon a percentage of uranium sales held by others (as a percent) 0.00%  
Interest earned in project in consideration of investment (as a percent) 0.00%  
Nose Rock Project | Gallup, New Mexico
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 45  
West Largo
   
PROPERTY, PLANT AND EQUIPMENT    
Interest earned in project in consideration of investment (as a percent) 100.00%  
Annual maintenance fee per claim (in dollars per claim) 140  
Area covered under lease (in acres) 3,840  
West Largo | Sections 20 and 28
   
PROPERTY, PLANT AND EQUIPMENT    
Number of unpatented mining claims owned by entity 75  
West Largo | Sections 17, 19, 21 and 29
   
PROPERTY, PLANT AND EQUIPMENT    
Number of sections of fee mineral rights 4  
West Largo | Section 29 | Elkins Ranch
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 2.50%  
Roca Honda Projects
   
PROPERTY, PLANT AND EQUIPMENT    
Area covered under lease (in acres) 3,085  
Roca Honda Projects | San Mateo in McKinley County, New Mexico
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 4  
Roca Honda Projects | Section 8
   
PROPERTY, PLANT AND EQUIPMENT    
Number of unpatented mining claims owned by entity 36  
Roca Honda Projects | Section 11
   
PROPERTY, PLANT AND EQUIPMENT    
Number of unpatented mining claims owned by entity 31  
Cebolleta Property | Neutron
   
PROPERTY, PLANT AND EQUIPMENT    
Area covered under lease (in acres) 6,717  
Lease term 10 years  
Initial payments per lease agreement 5,000,000  
Amount used in the calculation of recoverable reserve payment 1.00  
Annual advanced royalty payments 500,000  
Cebolleta Property | Neutron | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 4.50%  
Cebolleta Property | Neutron | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 8.00%  
Feasibility study term 6 years  
Annual advance royalties previously paid 1,500,000  
Amount of deduction to the recoverable reserve payment 6,500,000  
Juan Tafoya
   
PROPERTY, PLANT AND EQUIPMENT    
Area of land in which mineral fee interest acquired by entity (in acres) 4,097  
Lease term 10 years  
Initial payments per lease agreement 1,250,000  
Annual rental payments for the first five years of the lease 225,000  
Number of years the payment is at a specified amount 5  
Annual rental payments for the second five years of the lease 337,500  
Annual base rent per acre (in dollars per acre) 75  
Threshold market price of uranium drops for termination of lease (in dollars per pound) 25  
Juan Tafoya | Minimum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 4.65%  
Juan Tafoya | Maximum
   
PROPERTY, PLANT AND EQUIPMENT    
Royalties on lease based upon a percentage of uranium sales (as a percent) 6.50%  
Juan Tafoya | Albuquerque
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 45  
Juan Tafoya | Laguna
   
PROPERTY, PLANT AND EQUIPMENT    
Distance of property from a specified location (in miles) 25  
Uranium plant
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 9,344,000 9,532,000
Impairment expense related to change in estimates 584,025 1,444,405
Uranium plant | Kingsville Dome Project | South Texas
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 800,000  
Amount book value exceeds net realizable sales value 80,000  
Impairment provision 80,000  
Book value 2,800,000  
Dismantling/decontamination liability 2,000,000  
Uranium plant | Churchrock Project | South Texas
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 8,400,000  
Period of average historical contract price considered for undiscounted cash flow analysis 3 years  
Average historical contract price (in dollars per lb) 60.56  
Impairment provision 0  
Permits and licenses
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net)   174,000
Mineral rights and properties
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 19,750,000 20,872,000
Mineral rights and properties | South Texas
   
PROPERTY, PLANT AND EQUIPMENT    
Average historical contract price (in dollars per lb) 50.00  
Impairment provision 2,807,166  
Mineral rights and properties | New Mexico
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 19,700,000  
Average historical contract price (in dollars per lb) 0.42  
Carrying amount of mineral properties that the entity has decided to abandon 524,090  
Impairment provision 0  
Average current contract price (in dollars per lb) 0.50  
Evaluation and delineation
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net)   2,022,000
Vehicles/depreciable equipment
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) 1,530,000 1,435,000
Other property, plant and equipment
   
PROPERTY, PLANT AND EQUIPMENT    
Property, Plant and Equipment Balances (net) $ 217,000 $ 705,000