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Business Segments (Details 2) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Revenues $ 2,275,562 $ 1,585,191 $ 3,528,849 $ 3,328,182
Depreciation and amortization 219,944 223,367 442,408 449,648
Income (loss) from operations (232,190) (277,875) (573,916) (582,813)
Total other income (expense) 569,331 3,592 575,569 (352)
Net income (loss) 337,141 (274,283) 1,653 (583,165)
United States Antimony        
Revenues 1,428,939 910,484 2,086,046 2,031,909
Depreciation and amortization 7,893 7,394 15,784 14,789
Income (loss) from operations 99,642 126,208 (119,027) 365,559
Total other income (expense) 456,725 4,739 463,360 1,824
Net income (loss) 556,367 130,947 344,333 367,383
Mexico Antimony        
Revenues 0 0 0 0
Depreciation and amortization 144,999 146,101 289,951 292,199
Income (loss) from operations (575,363) (559,575) (813,931) (1,278,641)
Total other income (expense) 113,422 0 113,422 0
Net income (loss) (461,941) (559,575) (700,509) (1,278,641)
Subtotal Antimony        
Revenues 1,428,939 910,484 2,086,046 2,031,909
Depreciation and amortization 152,892 153,495 305,735 306,988
Income (loss) from operations (475,721) (433,367) (932,958) (913,082)
Total other income (expense) 570,147 4,739 576,782 1,824
Net income (loss) 94,426 (428,628) (356,176) (911,258)
Zeolite        
Revenues 716,428 612,715 1,236,375 1,172,075
Depreciation and amortization 38,826 49,189 80,843 98,379
Income (loss) from operations 141,562 114,184 208,444 250,352
Total other income (expense) (816) (1,147) (1,213) (2,176)
Net income (loss) 140,746 113,037 207,231 248,176
Precious Metals        
Revenues 130,195 61,992 206,428 124,198
Depreciation and amortization 28,226 20,683 55,830 44,281
Income (loss) from operations 101,969 41,308 150,598 79,917
Total other income (expense) 0 0 0 0
Net income (loss) $ 101,969 $ 41,308 $ 150,598 $ 79,917