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INTERIM CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating expenses
General and administrative -	$ 2,236,580us-gaap_OtherGeneralAndAdministrativeExpense	$ 1,873,520us-gaap_OtherGeneralAndAdministrativeExpense
Research and development	732,395us-gaap_ResearchAndDevelopmentExpense	263,847us-gaap_ResearchAndDevelopmentExpense
Total operating expenses	(2,968,975)us-gaap_OperatingIncomeLoss	(2,137,367)us-gaap_OperatingIncomeLoss
Other income (expenses)
Interest and finance expenses, net	(7,089)us-gaap_InterestExpense	(51,341)us-gaap_InterestExpense
Gain (loss) on settlement of accounts payable	199,655avxl_GainLossOnSettlementOfAccountsPayable	(976,880)avxl_GainLossOnSettlementOfAccountsPayable
Financing related charges and adjustments	(8,624,986)us-gaap_OtherNonoperatingGainsLosses	(480,328)us-gaap_OtherNonoperatingGainsLosses
Foreign exchange loss	33,042us-gaap_ForeignCurrencyTransactionGainLossBeforeTax	(54,130)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Total other expenses, net	(8,399,378)us-gaap_NonoperatingIncomeExpense	(1,562,679)us-gaap_NonoperatingIncomeExpense
Net loss and comprehensive loss for the period	$ (11,368,353)us-gaap_NetIncomeLoss	$ (3,700,046)us-gaap_NetIncomeLoss
Loss per share
Basic	$ (0.29)us-gaap_EarningsPerShareBasic	$ (0.12)us-gaap_EarningsPerShareBasic
Diluted	$ (0.30)us-gaap_EarningsPerShareDiluted	$ (0.12)us-gaap_EarningsPerShareDiluted
Weighted average number of shares outstanding
Basic	39,727,731us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	31,908,441us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Diluted	39,727,731us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	31,908,441us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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