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Schedule of Undiscounted Amounts of Estimated Cash Flows, 5 Years (Details) (USD $)
 9 Months Ended
Apr. 30, 2015
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 1 $ 85,207uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZerogtNknCmqmPXZ
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 2 340,827uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroOneltCZZerosWNineThreeJM
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 3 1,195,782uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroBzSDThreeFiveOnexFourEightwy
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 4 635,932uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroOnekyZeroxkyLvTgT
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 5 0uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroMTsbOneVwzFourpTThree
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 6 4,135,964uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroDJZyFivezEightOnenlSixd
Asset Retirement Obligations Schedule Of Undiscounted Amounts Of Estimated Cash Flows, 5 Years 7 $ 6,393,712uec_ScheduleOfUndiscountedAmountsOfEstimatedCashFlowsFiveYearsZeroTwoEightSixSixZeroWLkROnevkSevenTHPx