Basis of Presentation (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Mar. 31, 2012	Mar. 31, 2011
Note 1 Number of Weeks [Abstract]
Number of Weeks in Fiscal Year					P52W	P52W
Number of Weeks In Fiscal Quarter - Quarter To Date	P13W	P13W
Year To Date Number Of Weeks In Fiscal Quarter			P26W	P26W