XML 119 R71.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current:      
Federal $ 0 $ 0 $ 0
Deferred:      
Federal 0 0 0
Income taxes provision $ 0 $ 0 $ 0
Reconciliation of Tax Rate:      
Federal statutory rate (34.00%) (34.00%) (34.00%)
Change in valuation allowance 34.00% 33.80% 32.00%
Other (0.00%) 0.20% 2.00%
Effective income tax rate (0.00%) (0.00%) (0.00%)
The tax effect of these temporary differences representing deferred tax:      
Asset retirement obligation $ 2,290,315 $ 1,944,953  
Mineral rights and properties, plant, and equipment 839,360    
Mineral rights and properties, plant, and equipment   (5,853)  
Mining exploration, development, claims, and permit costs 10,705,987 10,616,416  
Net operating loss carryforward 53,021,957 50,333,692  
Other 869,666 435,598  
Valuation allowance (67,727,285) (63,324,806)  
Total net deferred tax assets 0 0  
Net operating loss carryforwards 155,900,000    
Change in valuation allowance $ 4,400,000 $ 3,500,000 $ 3,100,000