13. Business Segments (Details 2) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Total revenues	$ 2,456,365	$ 2,432,929
Depreciation and amortization	223,273	277,562
Income (loss) from operations	(683,767)	(399,769)
Other income (expense)	(23,693)	(74,671)
NET INCOME (LOSS)	(707,460)	(474,440)
United States Antimony [Member]
Total revenues	1,545,284	1,681,812
Depreciation and amortization	10,878	13,209
Income (loss) from operations	(52,096)	198,039
Other income (expense)	(1,367)	(778)
NET INCOME (LOSS)	(53,463)	197,261
Mexico Antimony [Member]
Total revenues	160,539	0
Depreciation and amortization	149,083	149,004
Income (loss) from operations	(802,676)	(742,781)
Other income (expense)	(18,287)	(71,120)
NET INCOME (LOSS)	(820,963)	(813,901)
Subtotal Antimony [Member]
Total revenues	1,705,823	1,681,812
Depreciation and amortization	159,961	162,213
Income (loss) from operations	(854,772)	(544,742)
Other income (expense)	(19,654)	(71,898)
NET INCOME (LOSS)	(874,426)	(616,640)
Precious Metals [Member]
Total revenues	24,527	60,410
Depreciation and amortization	17,011	67,529
Income (loss) from operations	7,516	(7,119)
Other income (expense)	0	0
NET INCOME (LOSS)	7,516	(7,119)
Zeolite [Member]
Total revenues	726,015	690,707
Depreciation and amortization	46,301	47,820
Income (loss) from operations	163,489	152,092
Other income (expense)	(4,039)	(2,773)
NET INCOME (LOSS)	$ 159,450	$ 149,319