Contingencies (Details)	3 Months Ended
	Dec. 16, 2005	Dec. 21, 2007
Contingencies (Textuals) [Abstract]
Additional plaintiffs		10
Claims for unspecified damages	9
Derivative Action [Member]
Contingencies (Textuals) [Abstract]
Purported Class action securities cases filed, subsequently filed	4
Derivative Action [Member] | Southern District of Ohio [Member]
Contingencies (Textuals) [Abstract]
Purported Class action securities cases filed, subsequently filed	3
Derivative Action [Member] | OHIO [Member]
Contingencies (Textuals) [Abstract]
Purported Class action securities cases filed, subsequently filed	1