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v2.4.1.9

Consolidated Balance Sheets (Parenthetical) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Stockholders' equity: |  |
Series A Preferred stock, par value | $ 0.01 us-gaap_PreferredStockParOrStatedValuePerShare | $ 0.01 us-gaap_PreferredStockParOrStatedValuePerShare
Series A Preferred stock, authorized shares | 10,000,000 us-gaap_PreferredStockSharesAuthorized | 10,000,000 us-gaap_PreferredStockSharesAuthorized
Series A Preferred stock, issued shares | 0 us-gaap_PreferredStockSharesIssued | 0 us-gaap_PreferredStockSharesIssued
Series A Preferred stock, outstanding shares | 0 us-gaap_PreferredStockSharesOutstanding | 0 us-gaap_PreferredStockSharesOutstanding
Series B Preferred stock, par value | $ 0.01 UAMY_SeriesBPreferredStockSharesParValue | $ 0.01 UAMY_SeriesBPreferredStockSharesParValue
Series B Preferred stock, authorized shares | 10,000,000 UAMY_SeriesBPreferredStockAuthorizedShares | 10,000,000 UAMY_SeriesBPreferredStockAuthorizedShares
Series B Preferred stock, issued shares | 750,000 UAMY_SeriesBPreferredStockIssuedShares | 750,000 UAMY_SeriesBPreferredStockIssuedShares
Series B Preferred stock, outstanding shares | 750,000 UAMY_SeriesBPreferredStockOutstandingShares | 750,000 UAMY_SeriesBPreferredStockOutstandingShares
Series B liquidation preference | $ 900,000 UAMY_SeriesBLiquidationPreference | $ 892,500 UAMY_SeriesBLiquidationPreference
Series C Preferred stock, par value | $ 0.01 UAMY_SeriesCPreferredStockSharesParValue | $ 0.01 UAMY_SeriesCPreferredStockSharesParValue
Series C Preferred stock, authorized shares | 10,000,000 UAMY_SeriesCPreferredStockAuthorizedShares | 10,000,000 UAMY_SeriesCPreferredStockAuthorizedShares
Series C Preferred stock, issued shares | 177,904 UAMY_SeriesCPreferredStockIssuedShares | 177,904 UAMY_SeriesCPreferredStockIssuedShares
Series C Preferred stock, outstanding shares | 177,904 UAMY_SeriesCPreferredStockOutstandingShares | 177,904 UAMY_SeriesCPreferredStockOutstandingShares
Series C liquidation preference | 97,847 UAMY_SeriesCLiquidationPreference | 97,847 UAMY_SeriesCLiquidationPreference
Series D Preferred stock, par value | $ 0.01 UAMY_SeriesDPreferredStockSharesParValue | $ 0.01 UAMY_SeriesDPreferredStockSharesParValue
Series D Preferred stock, authorized shares | 10,000,000 UAMY_SeriesDPreferredStockAuthorizedShares | 10,000,000 UAMY_SeriesDPreferredStockAuthorizedShares
Series D Preferred stock, issued shares | 1,751,005 UAMY_SeriesDPreferredStockIssuedShares | 1,751,005 UAMY_SeriesDPreferredStockIssuedShares
Series D Preferred stock, outstanding shares | 1,751,005 UAMY_SeriesDPreferredStockOutstandingShares | 1,751,005 UAMY_SeriesDPreferredStockOutstandingShares
Series D liquidation preference | $ 4,837,880 UAMY_SeriesDLiquidationPreference | $ 4,796,731 UAMY_SeriesDLiquidationPreference
Common stock, par value | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare | $ 0.01 us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares | 90,000,000 us-gaap_CommonStockSharesAuthorized | 90,000,000 us-gaap_CommonStockSharesAuthorized
Common stock, issued shares | 66,027,453 us-gaap_CommonStockSharesIssued | 63,156,206 us-gaap_CommonStockSharesIssued
Common stock, outstanding shares | 66,027,453 us-gaap_CommonStockSharesOutstanding | 63,156,206 us-gaap_CommonStockSharesOutstanding

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