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v2.4.1.9

Embedded conversion options and warrants (Details) (USD $) | 12 Months Ended
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Sep. 30, 2014
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 1 | $ 0 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreemvFourXZeroLVgzpNZero
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 2 | 904,000 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreeTwomnZeroKpSevenXZnHM
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 3 | 5,456,000 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreenGqOneXZbhMTwoNThree
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 4 | 0 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreeRcBqZeroRFzvwzEight
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 5 | 5,456,000 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreeJDHVSwFgNineNinezw
Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 6 | $ 904,000 avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreedFivehvFourJNGNcSixZ

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- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 6 + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 5 + References No definition available. + Details
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Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 1 + References No definition available. + Details
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Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
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Period Type: | duration

X
- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 3 + References No definition available. + Details
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- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 4 + References No definition available. + Details
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Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Non-interest Bearing Liabilities Embedded Conversion Options And Warrants 2 + References No definition available. + Details
Name: | avxl_EmbeddedConversionOptionsAndWarrantsZeroTwoSixFourOneThreeOneTwoThreeTwomnZeroKpSevenXZnHM
Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration