| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2023 | Apr. 26, 2024 | Jun. 30, 2023 | |
| Document Information Line Items | |||
| Entity Registrant Name | ALLARITY THERAPEUTICS, INC. | ||
| Trading Symbol | ALLR | ||
| Document Type | 10-K/A | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Common Stock, Shares Outstanding | 2,386,273 | ||
| Entity Public Float | $ 3,323,760 | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment No. 1 on Form 10-K/A (this “Amendment”) amends Allarity Therapeutics, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023, originally filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 8, 2024 (the “Original Form 10-K”). We are filing this Amendment pursuant to General Instruction G(3) of Form 10-K, as we currently expect that our definitive proxy statement for the 2024 annual meeting of stockholders will be filed later than the 120th day after the end of the last fiscal year. Accordingly, this Amendment is being filed solely to: ● amend Part III, Items 10, 11, 12, 13, and 14 of the Original Form 10-K to include the information required by and not included in such Items; ● delete the reference on the cover of the Original Form 10-K to the incorporation by reference of certain information from our proxy statement into Part III of the Original Form 10-K; and ● file new certifications of our principal executive officer and principal financial officer as exhibits to this Amendment under Item 15 of Part IV hereof pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, and to Section 302 of the Sarbanes-Oxley Act of 2002. This Amendment does not otherwise change or update any of the disclosures set forth in the Original Form 10-K.When used in this Amendment, unless the context requires otherwise, references to the “Company,” “we,” “our” and “us” refer to Allarity Therapeutics, Inc., a Delaware corporation. | ||
| Entity Central Index Key | 0001860657 | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Well-known Seasoned Issuer | No | ||
| Document Period End Date | Dec. 31, 2023 | ||
| Document Fiscal Year Focus | 2023 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | true | ||
| Entity Shell Company | false | ||
| Entity Ex Transition Period | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity File Number | 001-41160 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 87-2147982 | ||
| Entity Address, Address Line One | 24 School Street | ||
| Entity Address, Address Line Two | 2nd Floor | ||
| Entity Address, City or Town | Boston | ||
| Entity Address, State or Province | MA | ||
| Entity Address, Postal Zip Code | 02108 | ||
| City Area Code | (401) | ||
| Local Phone Number | 426-4664 | ||
| Title of 12(b) Security | Common Stock, par value $0.0001 per share | ||
| Security Exchange Name | NASDAQ | ||
| Entity Interactive Data Current | Yes | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Documents Incorporated by Reference [Text Block] | None | ||
| Auditor Firm ID | 392 | ||
| Auditor Name | Wolf & Company, P.C. | ||
| Auditor Location | Boston, MA |
