CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2012	Mar. 25, 2011	Mar. 30, 2012	Mar. 25, 2011
Condensed Consolidated Statements of Operations and Comprehensive Income [Abstract]
Net sales	$ 95,490	$ 76,471	$ 259,761	$ 213,026
Cost of goods sold	62,434	48,689	166,375	141,464
Gross profit	33,056	27,782	93,386	71,562
Marketing, engineering and administrative expenses	17,746	17,054	53,752	50,470
Earnings from operations	15,310	10,728	39,634	21,092
Interest expense	389	430	1,129	1,309
Other expense (income), net	71	193	(473)	836
	460	623	656	2,145
Earnings before income taxes and noncontrolling interest	14,850	10,105	38,978	18,947
Income taxes	5,412	5,563	14,039	7,648
Net earnings	9,438	4,542	24,939	11,299
Less: Net (earnings) loss attributable to noncontrolling interest, net of tax	(45)	6	(108)	(61)
Net earnings attributable to Twin Disc	9,393	4,548	24,831	11,238
Dividends per share	$ 0.09	$ 0.08	$ 0.25	$ 0.22
Earnings (loss) per share data:
Basic earnings per share attributable to Twin Disc common shareholders	$ 0.82	$ 0.40	$ 2.18	$ 0.99
Diluted earnings per share attributable to Twin Disc common shareholders	$ 0.81	$ 0.40	$ 2.15	$ 0.98
Weighted average shares outstanding data:
Basic shares outstanding	11,426	11,344	11,410	11,308
Dilutive stock awards	146	130	145	117
Diluted shares outstanding	11,572	11,474	11,555	11,425
Comprehensive income:
Net earnings	9,438	4,542	24,939	11,299
Foreign currency translation adjustment	2,241	4,551	(6,292)	14,776
Prior service credit, net	(80)	(107)	(240)	(321)
Net actuarial loss, net	498	652	1,543	1,986
Comprehensive income	12,097	9,638	19,950	27,740
Comprehensive (income) loss attributable to noncontrolling interest	(45)	6	(108)	(61)
Comprehensive income attributable to Twin Disc	$ 12,052	$ 9,644	$ 19,842	$ 27,679