Note M - Earnings Per Share - Components of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2023	Dec. 30, 2022	Sep. 30, 2022	Mar. 25, 2022	Dec. 31, 2021	Sep. 24, 2021	Mar. 31, 2023	Mar. 25, 2022
Net income	$ 2,750	$ 1,154	$ (1,931)	$ 2,310	$ (3,750)	$ 1,980	$ 1,973	$ 539
Less: Net earnings attributable to noncontrolling interest	(76)			(79)			(188)	(223)
Less: Undistributed earnings attributable to unvested shares	0			0			0	0
Net income attributable to Twin Disc	$ 2,674			$ 2,231			$ 1,785	$ 316
Weighted average shares outstanding - basic (in shares)	13,504			13,397			13,455	13,339
Basic income per share attributable to Twin Disc common shareholders (in dollars per share)	$ 0.20			$ 0.17			$ 0.13	$ 0.02
Effect of dilutive stock awards (in shares)	158			60			153	34
Weighted average shares outstanding - diluted (in shares)	13,662			13,457			13,608	13,373
Diluted income per share attributable to Twin Disc common shareholders (in dollars per share)	$ 0.20			$ 0.17			$ 0.13	$ 0.02