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Related Party Transactions (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Jul. 19, 2012
Related Party Transaction [Line Items]        
Sales to major customer, percent of revenues 32.00% 39.00%    
Payments to supplier, percent of purchases 39.00% 19.00%    
Due to NTR $ 3,258,288   $ 1,278,000  
Credit facility amount, maximum       7,500,000
Interest rate, credit       2.00%
Credit facility, amount outstanding 3,583,358      
Estate Gold [Member]
       
Related Party Transaction [Line Items]        
Percentage of ownership by the related party in the entity 25.00%      
Proceeds from related party 47,060 138,319    
Related party revenue 63,817 201,569    
Purchases from related party $ 69,286 $ 90,316