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INCOME TAXES (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
INCOME TAXES    
Tax loss carry forwards $ 252,900,000 $ 140,500,000
Deferred tax assets:    
Alternative minimum tax (AMT) credit carryforward 41,000 41,000
Net operating loss carryforward 80,975,000 46,211,000
Mineral Property 297,000 2,528,000
Other temporary differences 9,521,000 5,330,000
Capital loss carryforward 241,000 241,000
Total gross deferred tax assets 91,075,000 54,351,000
Less: valuation allowance (90,477,000) (53,578,000)
Net deferred tax assets 598,000 773,000
Deferred tax liabilities:    
Reclamation obligation 416,000 282,000
Mineral Property   (41,000)
Basis in Tonkin Springs Venture LP (1,014,000) (1,014,000)
Acquisition related deferred tax liability (229,522,000) (78,786,000)
Total deferred tax liabilities (230,120,000) (79,559,000)
Total net deferred tax liability (229,522,000) (78,786,000)
Valuation allowance    
Change in valuation allowance 36,900,000  
Acquisition related deferred tax liability    
Acquisition related deferred tax liability for mineral properties 229,100,000  
Acquisition related deferred tax liability for fixed assets $ 400,000