Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 27, 2013 Segment	Dec. 28, 2012	Jun. 30, 2013
Business Segments [Abstract]
Number of reportable segments			2
Segment Reporting Information [Line Items]
Net sales	$ 63,212	$ 72,325	$ 129,638	$ 141,118
Net earnings attributable to Twin Disc	518	3,360	1,795	4,591
Assets	274,529		274,529		285,458
Corporate and Eliminations [Member]
Segment Reporting Information [Line Items]
Net earnings attributable to Twin Disc	(2,557)	(3,246)	(5,178)	(6,001)
Assets	(41,941)		(41,941)		(30,124)
Manufacturing Segment [Member]
Segment Reporting Information [Line Items]
Net sales	57,010	66,914	110,268	125,196
Net earnings attributable to Twin Disc	1,653	5,055	3,670	7,889
Assets	263,324		263,324		258,617
Manufacturing Segment [Member] | Inter/Intra Segment Elimination [Member]
Segment Reporting Information [Line Items]
Net sales	(21,088)	(23,522)	(36,220)	(39,080)
Distribution Segment [Member]
Segment Reporting Information [Line Items]
Net sales	30,563	33,742	61,577	64,745
Net earnings attributable to Twin Disc	1,422	1,551	3,303	2,703
Assets	53,146		53,146		56,965
Distribution Segment [Member] | Inter/Intra Segment Elimination [Member]
Segment Reporting Information [Line Items]
Net sales	$ (3,273)	$ (4,809)	$ (5,987)	$ (9,743)