13. Business Segments (Details 2) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 2,256,347	$ 2,838,480	$ 4,689,276	$ 5,457,811
Depreciation and amortization	175,097	214,375	452,659	430,050
Income (loss) from operations	(160,053)	31,829	(559,822)	(280,043)
Other income (expense)	37,268	(48,784)	(37,403)	(128,215)
NET INCOME (LOSS)	(122,785)	(16,955)	(597,225)	(408,258)
United States Antimony [Member]
Revenues	1,492,520	2,077,300	3,174,333	4,046,026
Depreciation and amortization	13,170	18,700	26,380	38,200
Income (loss) from operations	391,895	844,257	589,934	1,173,160
Other income (expense)	(1,938)	(11,965)	(2,716)	(23,044)
NET INCOME (LOSS)	389,957	832,292	587,218	1,150,116
Mexico Antimony [Member]
Revenues	0	0	0	17,782
Depreciation and amortization	97,844	145,875	297,366	292,050
Income (loss) from operations	(808,575)	(1,089,834)	(1,551,357)	(1,841,012)
Other income (expense)	41,630	(33,605)	(29,488)	(98,569)
NET INCOME (LOSS)	(766,945)	(1,123,439)	(1,580,845)	(1,939,581)
Subtotal Antimony [Member]
Revenues	1,492,520	2,077,300	3,174,333	4,063,808
Depreciation and amortization	111,014	164,575	323,746	330,250
Income (loss) from operations	(416,680)	(245,577)	(961,423)	(667,852)
Other income (expense)	39,692	(45,570)	(32,204)	(121,613)
NET INCOME (LOSS)	(376,988)	(291,147)	(993,627)	(789,465)
Precious Metals [Member]
Revenues	81,293	144,766	141,703	165,577
Depreciation and amortization	17,011	0	34,021	0
Income (loss) from operations	114,801	144,766	107,682	165,577
Other income (expense)	0	0	0	0
NET INCOME (LOSS)	114,801	144,766	107,682	165,577
Zeolite [Member]
Revenues	682,534	616,414	1,373,240	1,228,426
Depreciation and amortization	47,072	49,800	94,892	99,800
Income (loss) from operations	141,826	132,640	293,919	222,232
Other income (expense)	(2,424)	(3,214)	(5,199)	(6,602)
NET INCOME (LOSS)	$ 139,402	$ 129,426	$ 288,720	$ 215,630