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Schedule of Stockholders' Equity Note, Warrants or Rights, Activity (Details) (USD $) | 3 Months Ended
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Dec. 31, 2014
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 1 | $ 9,149,479 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroBSevenwXFivegfNXDnm
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 2 | 0.75 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroFourFourEightMFourHSevenLNinezqq
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 3 | (2,700,513)avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroNPhPNHVzNinefkm
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 4 | 0.75 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroqNGwZHdHkMXl
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 5 | 68,466,666 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZerowGkEightTfpvNineSixnq
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 6 | 0.36 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZerofcCRhdwkrSMX
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 7 | 74,915,632 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZerozFFourSixDWMEightZnCL
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 8 | 0.40 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroHvJQgFiveSevenhfpCg
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 9 | 4,300,000 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroFOnesPFEightFEightgSixTwoX
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 10 | 0.35 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZerowcBqfRFourFourLTfG
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 11 | $ 79,215,632 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZeroFvKKwTfZeromSNNine
Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 12 | 0.39 avxl_ScheduleOfStockholdersaposEquityNoteWarrantsOrRightsActivityZeroTwoSixEightEightZerokbqgbThreeMXhCwQ

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- Definition Commitments Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 1 + References No definition available. + Details
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