CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended
	Sep. 30, 2011	Sep. 24, 2010
Condensed Consolidated Statements of Operations and Comprehensive Income [Abstract]
Net sales	$ 81,330	$ 61,395
Cost of goods sold	50,562	41,372
Gross profit	30,768	20,023
Marketing, engineering and administrative expenses	15,909	14,777
Earnings from operations	14,859	5,246
Interest expense	359	439
Other (income) expense, net	(394)	554
[NonoperatingIncomeExpense]	(35)	993
Earnings before income taxes and noncontrolling interest	14,894	4,253
Income taxes	5,259	1,556
Net earnings	9,635	2,697
Less: Net earnings attributable to noncontrolling interest, net of tax	(54)	(41)
Net earnings attributable to Twin Disc	9,581	2,656
Dividends per share	$ 0.08	$ 0.07
Earnings (loss) per share data:
Basic earnings per share attributable to Twin Disc common shareholders	$ 0.84	$ 0.24
Diluted earnings per share attributable to Twin Disc common shareholders	$ 0.83	$ 0.24
Weighted average shares outstanding data:
Basic shares outstanding	11,396	10,882
Dilutive stock awards	145	218
Diluted shares outstanding	11,541	11,100
Comprehensive income:
Net earnings	9,635	2,697
Benefit plan adjustments, net	474	553
Foreign currency translation adjustment	(2,275)	7,395
Comprehensive income	7,834	10,645
Comprehensive income attributable to noncontrolling interest	(54)	(41)
Comprehensive income attributable to Twin Disc	$ 7,780	$ 10,604