Condensed Consolidated Statements of Convertible Redeemable Preferred Stock and Stockholders’ Equity (Deficit) (Unaudited) - USD ($)	Preferred Stock Series B	Preferred Stock Series A	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Other Comprehensive Income	Total Onconetix Equity (Deficit)	Non- controlling Interest	Total
Balance at Dec. 31, 2022			$ 157	$ 42,331,155	$ (566,810)	$ (19,376,500)		$ 22,388,002		$ 22,388,002
Balance (in Shares) at Dec. 31, 2022			15,724,957		(459,729)
Exercise of pre-funded warrants			$ 7	(7)
Exercise of pre-funded warrants (in Shares)			646,640
Stock-based compensation				185,578				185,578		185,578
Purchase of treasury shares					$ (33,454)			(33,454)		(33,454)
Purchase of treasury shares (in Shares)					(32,638)
Net loss						(2,846,644)		(2,846,644)		(2,846,644)
Balance at Mar. 31, 2023			$ 164	42,516,726	$ (600,264)	(22,223,144)		19,693,482		19,693,482
Balance (in Shares) at Mar. 31, 2023			16,371,597		(492,367)
Balance at Dec. 31, 2022			$ 157	42,331,155	$ (566,810)	(19,376,500)		22,388,002		22,388,002
Balance (in Shares) at Dec. 31, 2022			15,724,957		(459,729)
Foreign currency translation adjustment
Net loss										(9,711,914)
Balance at Jun. 30, 2023			$ 169	42,789,961	$ (625,791)	(29,088,414)		13,075,925		13,075,925
Balance (in Shares) at Jun. 30, 2023			16,930,457		(517,399)
Balance at Mar. 31, 2023			$ 164	42,516,726	$ (600,264)	(22,223,144)		19,693,482		19,693,482
Balance (in Shares) at Mar. 31, 2023			16,371,597		(492,367)
Exercise of stock options				459				459		459
Exercise of stock options (in Shares)			45,920
Issuance of restricted stock			$ 5	(5)
Issuance of restricted stock (in Shares)			512,940
Stock-based compensation				272,781				272,781		272,781
Purchase of treasury shares					$ (25,527)			(25,527)		(25,527)
Purchase of treasury shares (in Shares)					(25,032)
Foreign currency translation adjustment
Net loss						(6,865,270)		(6,865,270)		(6,865,270)
Balance at Jun. 30, 2023			$ 169	42,789,961	$ (625,791)	(29,088,414)		13,075,925		13,075,925
Balance (in Shares) at Jun. 30, 2023			16,930,457		(517,399)
Balance at Dec. 31, 2023	$ 64,236,085		$ 228	49,428,809	$ (625,791)	(56,786,194)	2,380,920	(5,602,028)	7,006,504	1,404,476
Balance (in Shares) at Dec. 31, 2023	2,696,729	3,000	22,841,975		(517,399)
Issuance of restricted stock
Issuance of restricted stock (in Shares)			3,125
Stock-based compensation				23,865				23,865	28,785	52,650
Foreign currency translation adjustment							(4,991,144)	(4,991,144)		(4,991,144)
Changes in pension benefit obligation							154,678	154,678		154,678
Net loss						(11,118,572)		(11,118,572)		(11,118,572)
Balance at Mar. 31, 2024	$ 64,236,085		$ 228	49,452,674	$ (625,791)	(67,904,766)	(2,455,546)	(21,533,201)	7,035,289	(14,497,912)
Balance (in Shares) at Mar. 31, 2024	2,696,729	3,000	22,845,100		(517,399)
Balance at Dec. 31, 2023	$ 64,236,085		$ 228	49,428,809	$ (625,791)	(56,786,194)	2,380,920	(5,602,028)	7,006,504	1,404,476
Balance (in Shares) at Dec. 31, 2023	2,696,729	3,000	22,841,975		(517,399)
Foreign currency translation adjustment										(4,881,144)
Net loss										(25,425,276)
Balance at Jun. 30, 2024	$ 64,236,085		$ 228	49,405,359	$ (625,791)	(82,211,470)	(2,378,952)	(35,810,626)	7,081,992	(28,728,634)
Balance (in Shares) at Jun. 30, 2024	2,696,729	3,000	22,848,876		(517,399)
Balance at Mar. 31, 2024	$ 64,236,085		$ 228	49,452,674	$ (625,791)	(67,904,766)	(2,455,546)	(21,533,201)	7,035,289	(14,497,912)
Balance (in Shares) at Mar. 31, 2024	2,696,729	3,000	22,845,100		(517,399)
Restricted stock forfeitures
Restricted stock forfeitures (in Shares)			(12,500)
Exercise of stock options				163				163		163
Exercise of stock options (in Shares)			16,276
Stock-based compensation				(47,478)				(47,478)	46,703	(775)
Foreign currency translation adjustment							110,000	110,000		110,000
Changes in pension benefit obligation							(33,406)	(33,406)		(33,406)
Net loss						(14,306,704)		(14,306,704)		(14,306,704)
Balance at Jun. 30, 2024	$ 64,236,085		$ 228	$ 49,405,359	$ (625,791)	$ (82,211,470)	$ (2,378,952)	$ (35,810,626)	$ 7,081,992	$ (28,728,634)
Balance (in Shares) at Jun. 30, 2024	2,696,729	3,000	22,848,876		(517,399)