CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Sep. 27, 2013	Jun. 30, 2013
Twin Disc shareholders' equity:
Preferred Stock, Shares Authorized (in shares)	200,000	200,000
Preferred Stock, Shares Issued (in shares)	0	0
Preferred Stock, No Par Value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	13,099,468	13,099,468
Common stock, no par value (in dollars per share)	$ 0	$ 0
Treasury stock, shares (in shares)	1,843,949	1,886,516