Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 136,086	$ 123,683
Certificates of deposit	250,180	249,147
Accounts receivable, net	535,756us-gaap_AccountsReceivableNetCurrent	454,674us-gaap_AccountsReceivableNetCurrent
Inventories	2,307,164us-gaap_InventoryNet	1,433,539us-gaap_InventoryNet
Other current assets	381,875us-gaap_OtherAssetsCurrent	42,626us-gaap_OtherAssetsCurrent
Total current assets	3,611,061us-gaap_AssetsCurrent	2,303,669us-gaap_AssetsCurrent
Properties, plants and equipment, net	13,835,448us-gaap_PropertyPlantAndEquipmentNet	13,511,803us-gaap_PropertyPlantAndEquipmentNet
Restricted cash for reclamation bonds	75,754	75,754
Other assets	671,999us-gaap_OtherAssetsNoncurrent	653,805us-gaap_OtherAssetsNoncurrent
Total assets	18,194,262us-gaap_Assets	16,545,031us-gaap_Assets
Current liabilities:
Accounts payable	1,942,741us-gaap_AccountsPayableCurrent	1,821,673us-gaap_AccountsPayableCurrent
Due to factor	154,524UAMY_DueToFactor	13,314UAMY_DueToFactor
Accrued payroll, taxes and interest	131,831	135,245
Other accrued liabilities	41,900us-gaap_OtherAccruedLiabilitiesCurrent	38,811us-gaap_OtherAccruedLiabilitiesCurrent
Payables to related parties	20,073us-gaap_DueToRelatedPartiesCurrent	8,357us-gaap_DueToRelatedPartiesCurrent
Deferred revenue	221,272us-gaap_DeferredRevenue	115,962us-gaap_DeferredRevenue
Notes payable to bank	71,906us-gaap_NotesPayableToBank
Long-term debt, current	248,059us-gaap_LongTermDebtCurrent	159,278us-gaap_LongTermDebtCurrent
Total current liabilities	2,832,306us-gaap_LiabilitiesCurrent	2,292,640us-gaap_LiabilitiesCurrent
Long-term debt, net of discount and current portion	623,023us-gaap_LongTermDebtNoncurrent	715,328us-gaap_LongTermDebtNoncurrent
Hillgrove advances payable	880,532UAMY_HillgroveAdvancesPayable	161,339UAMY_HillgroveAdvancesPayable
Stock payable to directors for services	37,500UAMY_StockPayableToDirectorsForServices	125,000UAMY_StockPayableToDirectorsForServices
Asset retirement obligations and accrued reclamation costs	256,474	255,190
Total liabilities	4,629,835us-gaap_Liabilities	3,549,497us-gaap_Liabilities
Commitments and contingencies (Note 4 and 15)
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized: Series A: -0- shares issued and outstanding
Series B: 750,000 shares issued and outstanding (liquidation preference $900,000 and $892,500, respectively)	7,500UAMY_SeriesBPreferredStockValue	7,500UAMY_SeriesBPreferredStockValue
Series C: 177,904 shares issued and outstanding (liquidation preference $97,847 both years)	1,779UAMY_SeriesCPreferredStockValue	1,779UAMY_SeriesCPreferredStockValue
Series D: 1,751,005 shares issued and outstanding (liquidation preference $4,837,880 and $4,796,731 respectively)	17,509UAMY_SeriesDPreferredStockValue	17,509UAMY_SeriesDPreferredStockValue
Common stock, $0.01 par value, 90,000,000 shares authorized; 66,216,278 and 66,027,453 shares issued and outstanding, respectively	662,162us-gaap_CommonStockValue	660,274us-gaap_CommonStockValue
Additional paid-in capital	35,866,733us-gaap_AdditionalPaidInCapital	35,740,671us-gaap_AdditionalPaidInCapital
Notes receivable from stock sales	(149,085)	(150,000)
Accumulated deficit	(22,842,171)	(23,282,199)
Total stockholders' equity	13,564,427us-gaap_StockholdersEquity	12,995,534us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 18,194,262	$ 16,545,031

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