14. Business Segments (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Properties, plants and equipment, net	$ 15,879,575	$ 16,030,333
Total Assets	17,705,987	18,260,201
United States Antimony [Member]
Properties, plants and equipment, net	1,732,997	1,766,328
Total Assets	2,442,746	2,505,189
Mexico Antimony [Member]
Properties, plants and equipment, net	12,159,308	12,539,805
Total Assets	12,731,914	13,367,960
Subtotal Antimony [Member]
Properties, plants and equipment, net	13,892,305	14,306,133
Total Assets	15,174,660	15,873,149
Precious Metals [Member]
Properties, plants and equipment, net	471,069	171,074
Total Assets	471,069	171,074
Zeolite [Member]
Properties, plants and equipment, net	1,516,201	1,553,126
Total Assets	$ 2,060,258	$ 2,215,978