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11. Business Segments (Details 2) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Revenues $ 2,966,775 $ 3,053,554
Gross profit (62,134) 163,410
Depreciation and amortization 183,928 111,055
Antimony [Member]
   
Revenues 2,417,224 2,354,947
Gross profit (142,062) 113,008
Depreciation and amortization 130,178 61,238
Zeolite [Member]
   
Revenues 549,551 698,607
Gross profit 79,928 50,402
Depreciation and amortization $ 53,750 $ 49,817