Debt and Capital Lease Obligations (Details) (USD $)	6 Months Ended	12 Months Ended
Jan. 31, 2013	Oct. 29, 2011	Jul. 31, 2012
Debt Instrument [Line Items]
Long-term Debt, Current and Noncurrent	$ 783,658		$ 591,095
Current portion of long-term debt and capital lease obligations	(502,757)		(488,460)
Long-term debt and capital lease obligations	280,901		102,635
Interest rate, minimum (in hundredths)	2.50%	5.00%	2.50%
Interest rate, maximum (in hundredths)	3.00%	14.00%	5.00%
Average interest rate (in hundredths)	11.00%
Long-term Debt, by Maturity [Abstract]
February 2013 - January 2014	502,757
February 2014 - January 2015	198,455
February 2015 - January 2016	82,446
February 2016 - January 2017	0
February 2017 - January 2018	0
Thereafter	0
Long-term Debt, Total	783,658		591,095
Various Bank Loans and Advances [Member]
Debt Instrument [Line Items]
Long-term Debt, Current and Noncurrent	524,557		372,744
Long-term Debt, by Maturity [Abstract]
Long-term Debt, Total	524,557		372,744
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt, Current and Noncurrent	259,101		218,351
Long-term Debt, by Maturity [Abstract]
Long-term Debt, Total	$ 259,101		$ 218,351

Interest rate stated in the contractual debt agreement.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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