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17. Business Segments (Details 1) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Capital Expenditures | $ 999,119 | $ 405,819
United States Antimony [Member] |  |
Capital Expenditures | 0 | 32,961
Mexico Antimony [Member] |  |
Capital Expenditures | 803,579 | 87,396
Subtotal Antimony [Member] |  |
Capital Expenditures | 803,579 | 120,357
Precious Metals [Member] |  |
Capital Expenditures | 40,988 | 185,668
Zeolite (Member) |  |
Capital Expenditures | $ 154,552 | $ 99,794

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- Definition Custom Element. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Period Type: |

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- Details
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Period Type: |

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- Details
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Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |