Earnings Per Share (Details) (USD $)	3 Months Ended		12 Months Ended
	Oct. 31, 2012	Oct. 29, 2011	Jul. 31, 2012
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 242,527	$ 1,159,777
Dividend declared	0	0	2,000,000
Undistributed earnings	$ 242,527	$ 1,159,777
Weighted average common shares outstanding: basic and diluted (in shares)	4,244,010	4,203,445
Distributed earnings per share (in dollars per share)	$ 0	$ 0
Undistributed earnings per share (in dollars per share)	$ 0.06	$ 0.28
Net income per common share: basic and diluted (in dollars per share)	$ 0.06	$ 0.28
Minimum percentage right of Class B common stock holders to elect Board of Directors (in hundredths)	75.00%