Supplemental Cash Flow Information Disclosure (Details) (USD $)	3 Months Ended
	Oct. 31, 2012	Oct. 29, 2011	Jul. 31, 2012
Supplemental Cash Flow Information Disclosure [Abstract]
Cash paid for interest	$ 82,000	$ 73,000
Cash paid for income taxes	600,000	900,000
Dividends paid	1,018,783	1,028,881
Accrued dividends payable		$ 1,000,000	$ 1,000,000