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. 27, 2019	Sep. 28, 2018
Basic:
Net (loss) income	$ (6,293)	$ 2,903
Less: Net earnings attributable to noncontrolling interest	(18)	(41)
Less: Undistributed earnings attributable to unvested shares		(49)
Net (loss) income available to Twin Disc shareholders	$ (6,311)	$ 2,813
Weighted average shares outstanding - basic (in shares)	13,111	11,722
Basic (Loss) Income Per Share:
Net (loss) income per share - basic (in dollars per share)	$ (0.48)	$ 0.24
Diluted:
Net (loss) income	$ (6,293)	$ 2,903
Less: Net earnings attributable to noncontrolling interest	(18)	(41)
Less: Undistributed earnings attributable to unvested shares		(49)
Net (loss) income available to Twin Disc shareholders	$ (6,311)	$ 2,813
Weighted average shares outstanding - basic (in shares)	13,111	11,722
Effect of dilutive stock awards (in shares)		77
Weighted average shares outstanding - diluted (in shares)	13,111	11,799
Diluted (Loss) Income Per Share:
Net (loss) income per share - diluted (in dollars per share)	$ (0.48)	$ 0.24