Note L - Earnings Per Share - Components of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 27, 2024	Sep. 27, 2024	Dec. 29, 2023	Sep. 29, 2023	Dec. 27, 2024	Dec. 29, 2023
Net loss	$ 1,099	$ (2,772)	$ 935	$ (1,083)	$ (1,673)	$ (148)
Less: Net income attributable to noncontrolling interest, net of tax	(180)		(5)		(173)	(95)
Net income (loss) attributable to Twin Disc, Incorporated	$ 919		$ 930		$ (1,846)	$ (243)
Weighted average shares outstanding - basic (in shares)	13,868		13,718		13,818	13,629
Basic income (loss) per share attributable to Twin Disc, Incorporated common shareholders (in dollars per share)	$ 0.07		$ 0.07		$ (0.13)	$ (0.02)
Effect of dilutive stock awards (in shares)	190		205		0	0
Weighted average shares outstanding - diluted (in shares)	14,058		13,923		13,818	13,629
Diluted income (loss) per share attributable to Twin Disc, Incorporated common shareholders (in dollars per share)	$ 0.07		$ 0.07		$ (0.13)	$ (0.02)