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v2.4.1.9

Fair Value of the Purchaser and Non-Purchaser Warrants at Issuance (Details) (USD $) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2015 | Sep. 30, 2014
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 1 | 1.56%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroTwoyEightHgrTWcGEightM |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 2 | 5.00avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroWZbbQRGVNineRMR |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 3 | 97.16%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroJLzCTwoZeroSNineRTtz |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 4 | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroRgBTQThreemNRxFourk |
Amendment Agreements [Member] |  |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 1 |  | 3.13%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreezGSixQbqThreeSixdDlB / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 2 |  | 29.58avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeSixgTPXFmcmEightwy / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 3 |  | 100.71%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreekWCgOnedxrggEightw / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 4 |  | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeNCCfWThreeQqXSevenhl / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 1 | 3.13%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroTwoPZMsFCssTSNine / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 2 | 29.58avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroZOneBHJZXbSixDym / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 3 | 100.71%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroSevenSbVXsqSevenTSevennt / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 4 | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroWmNFourSixSevenbHyrEightN / avxl_NoninterestBearingLiabilitiesAxis = avxl_AmendmentAgreementsMember |
Embedded conversion options and warrants [Member] |  |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 1 |  | 3.21%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeyFhBQFNineKfSevenJh / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 2 |  | 0.10%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreePsflKQPREightbEightFour / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 3 |  | 29.48avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeHSixFourFourZPGdsLNineg / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 4 |  | 1.25avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreefNLkwgnSSFHNine / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 5 |  | 100.07%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeKZZeroOneWFourSCgFZP / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 6 |  | 77.51%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreesLThreeSWmTBTwoWSevenQ / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 7 |  | 0.184avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeFourTwogTTPtNinerrqThree / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 8 |  | 0.65avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeHHKWqzLwrXhD / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 9 |  | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreeJTwBlzKzCSpd / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 10 |  | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoSixFourOneThreeOneTwoThreegKVSixXTOnefkqvP / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 1 | 30avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroCSfBFourDBhTsVK / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 2 | 1.47%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroqmTTwoxhyySixFiveEightZero / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 3 | 3.21%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroOneOneNineOnesCOnedqyDh / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 4 | 24.19avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroSixNineFbqEightNineTrFKF / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 5 | 29.48avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroLnTyPpmwNineFNT / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 6 | 102.14%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeronTWwMlTFiveKNinePr / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 7 | 100.07%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeromHpTlNineGFDZeroSK / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 8 | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZerobhmsqSWzdqFivet / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |
Non-interest Bearing Liabilities Fair Value Of The Purchaser And Non-purchaser Warrants At Issuance 9 | 0.00%avxl_FairValueOfThePurchaserAndNonpurchaserWarrantsAtIssuanceZeroTwoEightOneOneZeroWnwQSwtgwTtEight / avxl_NoninterestBearingLiabilitiesAxis = avxl_EmbeddedConversionOptionsAndWarrantsMember |

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