EMPLOYEES' RETIREMENT PLANS (Details) (USD $)	12 Months Ended
Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
EMPLOYEES' RETIREMENT PLANS [Abstract]
Pension Contributions	$ 350,536	$ 334,152	$ 340,751
Employer contributions	$ 37,501	$ 29,628	$ 27,039

The increase in the fair value of plan assets from contributions made by the employer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration