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9. Long-Term Debt (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Total debt $ 1,899,032 $ 874,606
Less current portion (181,287) (159,278)
Noncurrent portion 1,717,745 715,328
First Security Bank [Member]    
Total debt 27,845 0
Wells Fargo Bank [Member]    
Total debt 5,399 10,245
Western States Equipment Co [Member]    
Total debt 0 11,977
BMT Leasing [Member]    
Total debt 0 9,254
Catepillar Finance [Member]    
Total debt 0 8,051
De Lage Landen Financial Services [Member]    
Total debt 2,171 7,951
De Lage Landen Financial Services 1 [Member]    
Total debt 0 689
De Lage Landen Financial Services 2 [Member]    
Total debt 27,587 0
De Lage Landen Financial Services 3 [Member]    
Total debt 29,300 0
PhyllisRice [Member]    
Total debt 14,146 18,146
SoyatalMine [Member]    
Total debt 820,272 808,293
Guadalupe Mine [Member]    
Total debt $ 972,312 $ 0