Consolidated Balance Sheets (Parenthetical) (USD $)	Jul. 31, 2013	Aug. 15, 2012	Aug. 14, 2012	Jul. 31, 2012
Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 0.01			$ 0.01
Preferred stock, shares authorized	5,000,000			5,000,000
Preferred stock, shares issued	0			0
Common stock, par value	$ 0.01			$ 0.01
Common stock, shares authorized	100,000,000			100,000,000
Common stock, shares issued	12,569,503			6,644,555
Common stock, shares outstanding	12,569,503	7,200,000	57,800,000	6,644,555