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Organization and Basis of Presentation (Details)	Jun. 13, 2025	Sep. 24, 2024	Dec. 15, 2023
Organization and Basis of Presentation [Line Items]
Reverse stock split ratio description	1:85	the Company effected a reverse stock split of all shares of its issued and outstanding Common Stock at a ratio of one-for-forty (1:40).
Onconetix, Inc. [Member]
Organization and Basis of Presentation [Line Items]
Subsidiary owned, percentage			100.00%
Proteomedix [Member]
Organization and Basis of Presentation [Line Items]
Subsidiary owned, percentage			100.00%

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 4.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-4

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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.

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