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Mortgage and Loans Payable (Details Textual) (USD $)
 3 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2012
Mar. 31, 2012
Sep. 30, 2012
Coin
Jul. 17, 2012
May 10, 2012
Mar. 30, 2012
Dec. 31, 2011
Jan. 31, 2010
Oct. 11, 2010
Series G Preferred 8% Convertible Preferred Stock [Member]
Sep. 30, 2012
Term loan [Member]
Mar. 30, 2012
Term loan [Member]
Dec. 31, 2011
Term loan [Member]
May 04, 2011
Term loan [Member]
Dec. 31, 2010
Term loan [Member]
Sep. 30, 2012
Project term loan [Member]
Jul. 09, 2012
Project term loan [Member]
May 31, 2008
Mortgage payable [Member]
Sep. 30, 2012
Mortgage payable [Member]
Dec. 31, 2012
Mortgage payable [Member]
Dec. 31, 2011
Mortgage payable [Member]
Jul. 11, 2008
Mortgage payable [Member]
May 31, 2008
Mortgage payable [Member]
First Mortgage [Member]
May 01, 2009
Mortgage payable [Member]
Second Mortgage [Member]
Sep. 30, 2012
Senior Convertible Note [Member]
May 10, 2012
Senior Convertible Note [Member]
Sep. 30, 2012
Senior Convertible Note [Member]
Lender [Member]
Sep. 30, 2012
Additional Notes [Member]
May 10, 2012
Additional Notes [Member]
Mortgage and Loans Payable (Textual) [Abstract]                                                        
Company's consolidated debt $ 29,384,206   $ 29,384,206     $ 5,000,000 $ 10,493,055     $ 5,000,000   $ 3,000,000 $ 5,000,000   $ 10,000,000     $ 1,995,332   $ 2,176,727 $ 2,580,000              
Maturity date   Jul. 11, 2013               Apr. 23, 2012         Jan. 31, 2013   May 14, 2015 Jul. 11, 2013                    
Term loan principal reduction                         2,000,000                              
Project term loan agreement a credit facility                               10,000,000                        
Restricted cash deposit interest payments over the term                             500,000                          
Origination fee paid at closing                             50,000                          
Project term loan silver recovered as security value                             15,000,000                          
Project term loan customary covenants     Advances against the term loan of $5 million can be requested when at least $10.0 million worth of silver has been recovered, and a second advance of $5.0 million can be requested when at least $15.0 million worth of silver in total is delivered to the port of entry.                                                  
First advance against project term loan                             5,000,000                          
Minimum silver to be recovered for first advance                             10,000,000                          
Basis spread on variable rate, points                     5.00%   5.00% 1.00%         1.00%   0.75%              
Commitment fee                         250,000                              
Principal amount outstanding                                           679,000 100,000          
Periodic payment                                 5,080                      
Principal payment                                               10,000,000     5,757,042  
Periodic payments, principal                                   10,750           434,783        
Interest rate, stated percentage                                 6.45%                     9.00%
Outstanding principal amount mortgage loan                                   25,000                    
Percentage of variable interest                                   1.00%                    
Interest rate description                                   prime rate plus three-fourths of one percent (0.75%)                    
Common stock shares exchanges from warrants                 270,000                                      
Original principal amount         8,000,000                                     10,000,000       8,000,000
Warrant issued to purchase common stock 1,302,083   1,302,083                                         1,302,083        
Original principal amount of repurchased note                                               5,000,000        
Debt related expenses                                               545,000   45,000    
Indebtedness Interest Rate Per Year                                               8.00%        
Indebtedness interest rate per year under default condition                                               15.00%        
Note repayment commencing date                                               Jul. 08, 2012        
Initial conversion price                                               $ 3.74 $ 3.17     $ 3.74
Debt instrument conversion reset conversion price description                                               The reset conversion price applicable to the Initial Note will be adjusted to the lesser of (a) the then current conversion price and (b) the greater of (i) $1.44 and (ii) 110.0 % of the market price of our common stock on the six-month anniversary of the initial closing date (as applicable, the “Conversion Price”).        
Debt instrument conversion price                                               $ 1.44        
Debt instrument conversion price, percentage     125.00%                                         110.00%        
Debt instrument amortization payment description                                               The conversion rate applicable to any amortization payment that we make in shares of our common stock will be the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the volume-weighted average price of our shares of common stock for a ten-day period immediately prior to the applicable amortization date.        
Volume-weighted average price, percentage                                               85.00%        
Conversion price applicable period                                               10 days        
Common stock issued under warrant terms     434,027                                               1,562,600  
Gross proceeds from derivative instrument     10,000,000                                               8,000,000  
Cost of the investor paid     45,000                                               5,518  
Direct financing cost     500,000                                               400,000  
Deferred cost     246,653                                               317,201  
Recorded expenses     253,347                                               82,799  
Interest expenses 1,359,855   3,327,204                                                  
Mortgage and Loans Payable (Additional Textual) [Abstract]                                                        
Loan-to-value, percent     80.00%                                                  
Secured collateral     26,700                                                  
Value of secured collateral, percent     40.00%                                                  
Acceleration payment of remaining face value, percentage     125.00%                                                  
Adjusted conversion price of quoted market prices, Percentage     75.00%                                                  
Warrant issued to purchase common stock 1,302,083   1,302,083                                         1,302,083        
Common stock initial exercise price     $ 4.32                                                  
Period for anniversary, initial closing date     Five-year period beginning on the six-month                                                  
Debt instrument conversion price, percentage     125.00%                                         110.00%        
Registration statement filing period     6 months                                                  
Period for registration statement to be effective     90 days thereafter                                                  
Registration statement review period     120 days thereafter                                                  
Term of warrant     5 years 6 months                                                  
Warrants exercise price (per share) 4.32   4.32   3.60     2.50                                        
Second advance against collateral silver     5,000,000                                                  
Long term draw against credit facility       10,000,000                                                
Minimum silver to be recovered for second advance     $ 15,000,000                                                  
Percentage of loan to value     80.00%