16. Business Segments (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Capital Expenditures	$ 405,819	$ 665,370
United States Antimony [Member]
Capital Expenditures	32,961	1,331
Mexico Antimony [Member]
Capital Expenditures	87,396	226,331
Subtotal Antimony [Member]
Capital Expenditures	120,357	227,662
Precious Metals [Member]
Capital Expenditures	185,668	304,412
Zeolite (Member)
Capital Expenditures	$ 99,794	$ 133,296