ACCRUED RECLAMATION COSTS (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Accrued Reclamation Costs 1	$ 13,000,000
Accrued Reclamation Costs 2	9,100,000
Accrued Reclamation Costs 3	$ 10,100,000
Accrued Reclamation Costs 4	2.50%
Accrued Reclamation Costs 5	12.53%
Accrued Reclamation Costs 6	100.00%
Accrued Reclamation Costs 7	100.00%