13. Business Segments (Details 2) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total revenues	$ 1,253,287	$ 1,742,991
Depreciation and amortization	222,464	226,281
Income (loss) from operations	(341,726)	(304,938)
Other income (expense)	6,238	(3,944)
Net income (loss)	(335,488)	(308,882)
United States Antimony
Total revenues	657,107	1,121,425
Depreciation and amortization	7,891	7,395
Income (loss) from operations	(218,669)	239,352
Other income (expense)	6,635	(2,915)
Net income (loss)	(212,034)	236,437
Mexico Antimony
Total revenues	0	0
Depreciation and amortization	144,952	146,098
Income (loss) from operations	(238,568)	(719,066)
Other income (expense)	0	0
Net income (loss)	(238,568)	(719,066)
Subtotal Antimony
Total revenues	657,107	1,121,425
Depreciation and amortization	152,843	153,493
Income (loss) from operations	(457,237)	(479,714)
Other income (expense)	6,635	(2,915)
Net income (loss)	(450,602)	(482,629)
Precious Metals
Total revenues	76,233	62,206
Depreciation and amortization	27,604	23,598
Income (loss) from operations	48,630	38,608
Other income (expense)	0	0
Net income (loss)	48,630	38,608
Zeolite
Total revenues	519,947	559,360
Depreciation and amortization	42,017	49,190
Income (loss) from operations	66,881	136,168
Other income (expense)	(397)	(1,029)
Net income (loss)	$ 66,484	$ 135,139