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
	Sep. 25, 2020	Sep. 27, 2019
Net loss	$ (3,937)	$ (6,293)
Less: Net earnings attributable to noncontrolling interest	(42)	(18)
Less: Undistributed earnings attributable to unvested shares	0	0
Net loss available to Twin Disc shareholders	$ (3,979)	$ (6,311)
Weighted average shares outstanding - basic (in shares)	13,197	13,111
Net loss per share - basic (in dollars per share)	$ (0.30)	$ (0.48)
Net loss available to Twin Disc shareholders	$ (3,979)	$ (6,311)
Effect of dilutive stock awards (in shares)	0	0
Weighted average shares outstanding - diluted (in shares)	13,197	13,111
Net loss per share - diluted (in dollars per share)	$ (0.30)	$ (0.48)