CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating activities:
Net loss	$ (8,506,420)	$ (7,733,187)
Reconciliation of net loss to cash used in by operations-
Accretion/amortization of asset retirement obligations	95,562	116,431
Depreciation and depletion	576,758	684,030
Impairment of uranium properties	1,081,666	742,278
Decrease in restoration and reclamation accrual	(1,170,956)	(1,072,148)
Stock compensation expense	737,300	795,743
Other non-cash items, net	2,289	14,858
Effect of changes in operating working capital items-
(Increase) decrease in receivables	(246,821)	59,288
Decrease in prepaid and other current assets	(81,445)	(157,877)
(Increase) decrease in payables, accrued liabilities and deferred credits	(773,860)	1,349,191
Net cash used in operations	(8,285,927)	(5,201,393)
Investing activities:
Increase in certificates of deposit, restricted	(1,525,125)	(41,795)
Additions to property, plant and equipment-
Proceeds from joint venture agreement	300,000
Net cash used in investing activities	(1,639,903)	(498,693)
Financing activities:
Payments on borrowings	(67,261)	(90,419)
Issuance of common stock, net	21,345	10,203,626
Net cash provided by (used in) financing activities	(45,916)	10,113,207
Net increase (decrease) in cash and cash equivalents	(9,971,746)	4,413,121
Cash and cash equivalents, beginning of period	15,386,472	6,092,068
Cash and cash equivalents, end of period	5,414,726	10,505,189
Non-cash transactions:
Issuance of common stock in settlement of deferred compensation	697,027
Issuance of restricted stock to employees and directors	176	302
Kingsville Dome
Additions to property, plant and equipment-
Additions to property, plant and equipment	(110,063)	(143,324)
Vasquez
Additions to property, plant and equipment-
Additions to property, plant and equipment	(15,100)	(7,500)
Rosita/Rosita South
Additions to property, plant and equipment-
Additions to property, plant and equipment	(118,732)	(63,852)
Los Finados
Additions to property, plant and equipment-
Additions to property, plant and equipment	(88,236)	0
Churchrock
Additions to property, plant and equipment-
Additions to property, plant and equipment	(30,057)	(125,543)
Section 13 Drilling
Additions to property, plant and equipment-
Additions to property, plant and equipment	(17,805)	(89,882)
Other property
Additions to property, plant and equipment-
Additions to property, plant and equipment	$ (34,785)	$ (26,797)