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12. Business Segments (Tables)
6 Months Ended
Jun. 30, 2013
Segment Reporting [Abstract]  
Segment Information
    June 30, 2013     December 31, 2012  
Properties, plants and equipment, net:            
Antimony            
United States   $ 1,924,444     $ 1,889,859  
Mexico     8,204,896       6,969,622  
Subtotal Antimony     10,129,340       8,859,481  
Zeolite     1,714,252       1,716,925  
    $ 11,843,592     $ 10,576,406  
Total Assets:                
Antimony                
United States   $ 3,207,678     $ 3,941,460  
Mexico     9,275,531       8,166,318  
Subtotal Antimony     12,483,209       12,107,778  
Zeolite     2,225,894       2,335,130  
    $ 14,709,103     $ 14,442,908  

 

    For the three months ended     For the six months ended  
    June 30, 2013     June 30, 2012     June 30, 2013     June 30, 2012  
Depreciation and amortization:                        
Antimony   $ 128,471     $ 57,553     $ 258,649     $ 115,107  
Zeolite     54,935       52,461       108,685       102,278  
Total   $ 183,406     $ 110,014     $ 367,334     $ 217,385  
                                 
                                 
    For the three months ended     For the six months ended  
    June 30, 2013     June 30, 2012     June 30, 2013     June 30, 2012  
Capital expenditures:                                
Antimony                                
United States   $ 15,404     $ 17,850     $ 65,186     $ 62,618  
Mexico     1,074,269       671,987       1,463,322       1,434,827  
Subtotal Antimony     1,089,673       689,837       1,528,508       1,497,445  
Zeolite     72,221       116,485       106,012       157,372  
Total   $ 1,161,894     $ 806,322     $ 1,634,520     $ 1,654,817  

 

    For the three months ended     For the six months ended  
    June 30, 2013     June 30, 2012     June 30, 2013     June 30, 2012  
Revenues:                        
Antimony   $ 2,303,012     $ 2,525,097     $ 4,608,241     $ 4,699,906  
Precious metals     108,825       205,771       220,820       385,909  
Zeolite     542,840       767,433       1,092,391       1,466,040  
Total   $ 2,954,677     $ 3,498,301     $ 5,921,452     $ 6,551,855  
                                 
                                 
    For the three months ended     For the six months ended  
    June 30, 2013     June 30, 2012     June 30, 2013     June 30, 2012  
Gross profit (loss):                                
Antimony   $ (53,190 )   $ 191,146     $ (195,251 )   $ 264,978  
Zeolite     51,278       97,774       131,205       144,671  
Total   $ (1,912 )   $ 288,920     $ (64,046 )   $ 409,649