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Summary of Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
Sep. 30, 2014
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Summary Of Significant Accounting Policies 1 33.00%avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeBkbEightqSevendGfpML
Summary Of Significant Accounting Policies 2 50.00%avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeHKXtRpZqRhWD
Summary Of Significant Accounting Policies 3 107,869,808avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreePFmbmZMFiveXmTwoS
Summary Of Significant Accounting Policies 4 12,224,479avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeQymfRdrfkKhs
Summary Of Significant Accounting Policies 5 12avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreepDvThreeThreefZThreeVhkn
Summary Of Significant Accounting Policies 6 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeFourgwrwQNineFiveFqzFive
Summary Of Significant Accounting Policies 7 10avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeGbyJtbThreeSBbrL
Summary Of Significant Accounting Policies 8 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreehFiveSevenkFiveFOnexvbwC
Summary Of Significant Accounting Policies 9 10avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeLPPFSsEightFourShNinex
Summary Of Significant Accounting Policies 10 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeGPGfFivevsKZeroGSixf
Summary Of Significant Accounting Policies 11 12avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeSixSLJpwFiveFourSixXkt
Summary Of Significant Accounting Policies 12 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreedRSixpnJzcCcSevenc
Summary Of Significant Accounting Policies 13 12avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreemTwoCqFivetFrTBMd
Summary Of Significant Accounting Policies 14 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreelXTmTwoWTwofFivexZerot
Summary Of Significant Accounting Policies 15 15avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreelGllCSevenyKJDkSeven
Summary Of Significant Accounting Policies 16 2,014avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeThreeNdEightROneCFourHkVP
Summary Of Significant Accounting Policies 17 15avxl_SummaryOfSignificantAccountingPoliciesZeroTwoSixFourOneThreeOneTwoThreeHcSGOnewztFiveXSK