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Schedule of Stockholders' Equity Note, Warrants or Rights (Details) (USD $) | 12 Months Ended
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Sep. 30, 2014
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 1 | $ 6,448,966 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreelOnehTdWSixtpgJOne
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 2 | 0.75 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeVTfTHnvpZerodkW
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 3 | 500,000 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeKTpFourQdSCNinehnJ
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 4 | 0.75 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeZerobmSixzFNineJhTwoyF
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 5 | 120,000 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreedQwmsXSevenQtprR
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 6 | 1.00 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeNgvNXBgCQRfEight
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 7 | 33,833,333 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeWVVOneBXszTwSh
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 8 | 0.30 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreewHVcNZLNGGNineNine
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 9 | 33,833,333 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeZWwctSQQmJNf
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 10 | 0.42 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeMkwNFiveTwoTVZBtm
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 11 | 180,000 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeEightDWTXNsJlFourFourh
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 12 | 0.31 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeLPrQzxlZHdlJ
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights 13 | $ 74,915,632 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsZeroTwoSixFourOneThreeOneTwoThreeSevenZeroTwoCSRWThnzD

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