3. Inventories (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Inventories	$ 738,118	$ 1,094,238
Antimony Oxide - Finished
Inventories	253,110	332,068
Zeolite [Member]
Inventories	223,891	206,378
Antimony Concentrates
Inventories	48,785	133,954
Antimony Ore [Member]
Inventories	151,841	319,631
Antimony Metal [Member]
Inventories	60,491	102,207
Antimony [Member]
Inventories	$ 514,227	$ 887,860