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Asset retirement obligations (Narrative) (Details) | 9 Months Ended
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Jul. 31, 2014 Y
Asset Retirement Obligations 1 | 10.00%
Asset Retirement Obligations 2 | 12

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- Definition Asset Retirement Obligations 1 + References No definition available. + Details
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Namespace Prefix: | lxrp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Asset Retirement Obligations 2 + References No definition available. + Details
Name: | lxrp_AssetRetirementObligationsZeroTwoFourTwoFourZeroZeroNsSevenHzvGTTwohX
Namespace Prefix: | lxrp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration