CONTRACT COMMITMENTS (Details)	1 Months Ended
	Mar. 31, 2006 lb	Dec. 31, 2012 lb
Itochu
CONTRACT COMMITMENTS
Percentage of actual production from properties in Texas currently owned or hereafter acquired, required to be delivered	50.00%
Total Uranium deliveries from inception of the contracts through December 31, 2012 (in pounds)		510,000
Period prior to the date of delivery based on which average spot price is calculated to determine the sales price of Texas production	56 days
Amount reduced from average spot price for the eight weeks prior to the date of delivery to determine the sale price of Texas production (in dollars per pound)	7.5
Floor for the spot price at which Texas production will be sold (in dollars per pound)	37
Ceiling for the price at which Texas production will be sold (in dollars per pound)	43
Spot price per pound above which price will be increased by 50% of such excess	50
Percentage of excess of spot price over $50 per pound by which sale price of Texas production will be increased	50.00%
Amount of deliveries from Texas production to which floor, ceiling and sharing arrangement over the ceiling applies (in pounds)	3,650,000
Notice period to cancel deliveries from Texas production	6 months
UG
CONTRACT COMMITMENTS
Percentage of actual production from properties in Texas currently owned or hereafter acquired, required to be delivered	50.00%
Total Uranium deliveries from inception of the contracts through December 31, 2012 (in pounds)		480,000
Amount reduced from average spot price for the eight weeks prior to the date of delivery to determine the sale price of Texas production (in dollars per pound)	6
Amount of sale in a particular delivery year at a price equal to the month-end long-term contract price for the second month prior to the month of delivery less $6 per pound until specified amount of Texas production is sold (in pounds)	600,000
Aggregate amount of sale to be made at a price equal to the month-end long-term contract price for the second month prior to the month of delivery less $6 per pound until specified amount of Texas production is sold (in pounds)	3,000,000
Percentage of amount reduced from the average spot price for a period prior to the date of delivery at which right of first refusal to purchase other Texas production can be exercised	4.00%