13. Business Segments (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Properties, plants and equipment, net	$ 15,559,890	$ 15,695,966
Total Assets	17,719,311	17,765,998
United States Antimony [Member]
Properties, plants and equipment, net	1,674,831	1,694,331
Total Assets	2,360,482	2,495,842
Mexico Antimony [Member]
Properties, plants and equipment, net	11,866,975	11,984,467
Total Assets	12,749,939	12,681,109
Subtotal Antimony [Member]
Properties, plants and equipment, net	13,541,806	13,678,798
Total Assets	15,110,421	15,176,951
Precious Metals [Member]
Properties, plants and equipment, net	587,615	544,615
Total Assets	587,615	544,615
Zeolite [Member]
Properties, plants and equipment, net	1,430,469	1,472,553
Total Assets	$ 2,021,275	$ 2,044,432