XML 30 R19.htm IDEA: XBRL DOCUMENT
v3.22.1

Equity Offerings (Details Narrative) - USD ($) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jun. 07, 2019 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2022 | Sep. 30, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |
Sales of agreement amount |  | $ 148,589,086 |  |  | $ 148,589,086 | $ 163,392,550
Equity Offering Sales Agreement [Member] | Cantor Fitzgerald And Co [Member] |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |
Percentage of gross proceeds from sales |  |  |  |  | 3.00% |
Share issued for aggregate, shares |  | 1,066,389 | 3,552,313 |  | 4,086,209 |
Gross proceeds from sale of common stock |  | $ 14,803,464 | $ 37,823,241 |  |  |
Proceed from offering |  | $ 14,265,658 | $ 36,688,544 |  |  |
2019 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member] |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |
Total number of shares obligated to purchase | $ 50,000,000 |  |  |  |  |
Proceeds from Issuance or Sale of Equity | $ 50,000,000 |  |  |  |  |
Pro rata basic number of shares obligated to purchase | 162,191 |  |  |  |  |
Shares issued under Sales Agreement, net of shares issue costs, shares |  |  |  |  | 4,007,996 |
Number of shares issued for aggregate purchase price, value |  |  |  | $ 24,111,198 |  |
Number of shares issued for commitment |  |  |  | 78,213 |  |

X
- References No definition available. + Details
Name: | avxl_GrossProceedsFromSaleOfCommonStock
Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Information related to number of shares obligated to purchase prorata basic. + References No definition available. + Details
Name: | avxl_NumberOfSharesObligatedToPurchaseProrataBasic
Namespace Prefix: | avxl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents information related to percentage of gross proceeds from sales. + References No definition available. + Details
Name: | avxl_PercentageOfGrossProceedsFromSales
Namespace Prefix: | avxl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | avxl_SalesOfAgreementAmount
Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | avxl_StockIssuedDuringPeriodSharesNewIssues1
Namespace Prefix: | avxl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | avxl_StockIssuedDuringPeriodValueNewIssues1
Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Information related to value of shares obligated to purchase initially. + References No definition available. + Details
Name: | avxl_ValueOfSharesObligatedToPurchase
Namespace Prefix: | avxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceInitialPublicOffering
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares of stock issued attributable to transactions classified as other. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=avxl_EquityOfferingSalesAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=avxl_CantorFitzgeraldAndCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=avxl_PurchaseAgreement1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=avxl_LincolnParkCapitalFundLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |