XML 33 R40.htm IDEA: XBRL DOCUMENT v2.4.1.9

12. Stockholder's Equity (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Warrant
Beginning balance, shares	762,917us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	2,489,407us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Warrants exercised, shares		(310,625)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Warrants expired, shares		(1,415,865)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Ending balance, shares	726,917us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	762,917us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
2015	476,917UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsIn2015 / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Thereafter	250,000UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsThereafter / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Total	726,917UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsTotal / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
2015	$ 4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsIn2015ExcercisePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Thereafter	$ 0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsTherafterExcercisePrice / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Minimum | Warrant
Beginning balance, Exercise Prices	$ 0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Warrants granted, Exercise Prices		1.20us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Ending balance Exercise Prices	$ 0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Maximum | Warrant
Beginning balance, Exercise Prices	$ 4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Warrants granted, Exercise Prices		1.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Ending balance Exercise Prices	$ 4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember	4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Warrant
Beginning balance, shares			1,934,667us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrants issued, shares			629,740us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrants exercised, shares			(25,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrants expired, shares			(50,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Ending balance, shares			2,489,407us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrants exercised, Exercise Prices			$ 1.20us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrants expired, Exercise Prices			$ 4.50us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember
Warrant | Minimum
Beginning balance, Exercise Prices			$ 0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Warrants granted, Exercise Prices			$ 1.20us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Ending balance Exercise Prices			$ 0.25UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Warrant | Maximum
Beginning balance, Exercise Prices			$ 4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice1 / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Warrants granted, Exercise Prices			$ 1.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Ending balance Exercise Prices			$ 4.50UAMY_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice3 / us-gaap_DebtSecurityAxis = us-gaap_WarrantMember / us-gaap_RangeAxis = us-gaap_MaximumMember

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)-(4)

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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