Note J - Reconciliation of Reportable Segment Net Sales and Net Earnings to Consolidated Totals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Operating Segments [Member]
Net Sales	$ 215,164	$ 353,139	$ 357,905
Net (loss) earnings attributable to Twin Disc	(11,932)	19,211	13,089
Intersegment Eliminations [Member]
Net Sales	(48,882)	(87,349)	(93,996)
Corporate, Non-Segment [Member]
Net (loss) earnings attributable to Twin Disc	(1,172)	(8,038)	(9,445)
Net Sales	166,282	265,790	263,909
Net (loss) earnings attributable to Twin Disc	$ (13,104)	$ 11,173	$ 3,644