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8. Note Payable to Bank (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Note payable to bank	$ 198,228	$ 183,917
Promissory note payable 1
Note payable to bank	99,999	83,918
Promissory note payable 2
Note payable to bank	$ 98,229	$ 99,999

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- Definition

Current portion of the total carrying amount as of the balance sheet date due within one year or the operating cycle, if longer, on all notes payable to banks paid on an installment with long term maturities. This can include the amount of any loans from the applicant firm. This does not, however, include any mortgage balances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(a)(1),20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesPayableToBankCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Details

Name:	us-gaap_InformationByCategoryOfDebtSecurityAxis=UAMY_PromissoryNotePayable1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InformationByCategoryOfDebtSecurityAxis=UAMY_PromissoryNotePayable2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: