Cover |
6 Months Ended |
|---|---|
Mar. 31, 2024 | |
| Entity Addresses [Line Items] | |
| Document Type | S-1/A |
| Amendment Flag | true |
| Amendment Description | Amendment No. 5 |
| Entity Registrant Name | ARCH THERAPEUTICS, INC. |
| Entity Central Index Key | 0001537561 |
| Entity Tax Identification Number | 46-0524102 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 235 Walnut St., Suite 6 |
| Entity Address, City or Town | Framingham |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01702 |
| City Area Code | (617) |
| Local Phone Number | 431-2313 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | false |
| Business Contact [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | 235 Walnut St., Suite 6 |
| Entity Address, City or Town | Framingham |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01702 |
| City Area Code | (617) |
| Local Phone Number | 431-2313 |
| Contact Personnel Name | Terrence W. Norchi |
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition Address Line 1 such as Attn, Building Name, Street Name No definition available.
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- 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. No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Two-character EDGAR code representing the state or country of incorporation. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicates that the company is a Smaller Reporting Company (SRC). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Local phone number for entity. No definition available.
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- Details
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