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Notes Payable - Equipment (Details Textual)
6 Months Ended
Jun. 30, 2017
USD ($)
Installments
Dec. 31, 2016
USD ($)
Nov. 30, 2016
USD ($)
Nov. 18, 2009
Notes Payable - Equipment (Textual)        
Interest rate       15.00%
Net carrying value $ 3,841,144 $ 4,039,887    
Komatsu Financial, collateralized by a Komatsu Telehandler lift [Member]        
Notes Payable - Equipment (Textual)        
Number of installment (in monthly) | Installments 48      
Note payable amount (remaining installments) $ 2,441      
Interest rate 4.99%      
Komatsu Financial, uncollateralized [Member]        
Notes Payable - Equipment (Textual)        
Note payable amount (first installment) $ 3,223      
Number of installment (in monthly) | Installments 12      
Interest rate 1.16%      
CAT Financial, Collateralized by Five Pieces of used Mining Equipment [Member]        
Notes Payable - Equipment (Textual)        
Number of installment (in monthly) | Installments 36      
Note payable amount (remaining installments) $ 960,585      
Interest rate 4.68%      
Equipment original cost     $ 1,500,888  
Accumulated depreciation     372,129  
Net carrying value     $ 1,128,759  
Komatsu Financial, Collateralized by a Komatsu D275 Dozer [Member]        
Notes Payable - Equipment (Textual)        
Note payable amount (first installment) $ 21,000      
Number of installment (in monthly) | Installments 47      
Note payable amount (remaining installments) $ 11,674      
Interest rate 2.99%      
Star Capital, LLC, Collateralized by a 2009 Multiquip Generator [Member]        
Notes Payable - Equipment (Textual)        
Note payable amount (first installment) $ 1,412      
Number of installment (in monthly) | Installments 24      
Interest rate 11.40%