14. Business Segments (Details 2) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total revenues	$ 2,091,725	$ 2,369,714	$ 6,781,001	$ 7,827,525
Depreciation and amortization	225,351	207,175	678,010	637,225
Income (loss) from operations	865,740	(227,162)	305,918	(507,206)
Other income (expense)	401,707	(35,403)	364,304	(163,617)
NET INCOME (LOSS)	1,267,447	(262,565)	670,222	(670,823)
United States Antimony [Member]
Total revenues	1,366,540	1,796,775	4,540,873	5,842,801
Depreciation and amortization	13,170	14,200	39,550	42,900
Income (loss) from operations	1,259,735	435,497	1,849,669	1,618,156
Other income (expense)	(3,715)	(11,611)	(6,431)	(34,654)
NET INCOME (LOSS)	1,256,020	423,886	1,843,238	1,583,502
Mexico Antimony [Member]
Total revenues	0	0	0	17,782
Depreciation and amortization	148,363	127,675	445,729	397,325
Income (loss) from operations	(537,067)	(861,683)	(2,088,424)	(2,680,293)
Other income (expense)	409,238	(20,772)	379,750	(119,341)
NET INCOME (LOSS)	(127,829)	(882,455)	(1,708,674)	(2,799,634)
Subtotal Antimony [Member]
Total revenues	1,366,540	1,796,775	4,540,873	5,860,583
Depreciation and amortization	161,533	141,875	485,279	440,225
Income (loss) from operations	722,668	(426,186)	(238,755)	(1,062,137)
Other income (expense)	405,523	(32,383)	373,319	(153,995)
NET INCOME (LOSS)	1,128,191	(458,569)	134,564	(1,216,132)
Precious Metals [Member]
Total revenues	71,820	78,245	213,523	243,822
Depreciation and amortization	17,011	15,100	51,032	47,000
Income (loss) from operations	54,809	63,145	162,491	196,821
Other income (expense)	0	0	0	0
NET INCOME (LOSS)	54,809	63,145	162,491	196,821
Zeolite [Member]
Total revenues	653,365	494,694	2,026,605	1,723,120
Depreciation and amortization	46,807	50,200	141,699	150,000
Income (loss) from operations	88,263	135,879	382,182	358,110
Other income (expense)	(3,816)	(3,020)	(9,015)	(9,622)
NET INCOME (LOSS)	$ 84,447	$ 132,859	$ 373,167	$ 348,488