RESTRUCTURING AND OTHER CHARGES, NET (Details Textuals) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jan. 31, 2013		Jan. 31, 2012		Jan. 31, 2013		Jan. 31, 2012
Restructuring and other gains charges [Line Items]
Gain on sale of assets	$ 49		$ 0		$ 6		$ 10,711
Restructuring Liability 2009 And 2010 [Member]
Restructuring and other gains charges [Line Items]
Restructuring Reserve	366				366
Other Charges Gains [Member]
Restructuring and other gains charges [Line Items]
Gain on sale of assets	0	[1]	0	[1]	0	[1]	9,196	[1]
Other Charges Gains [Member] | Satair [Member]
Restructuring and other gains charges [Line Items]
Gain on sale of assets							$ 9,196

[1] Other (Gains) / Charges:Severance benefits and other employment contract obligations:In the three and six months ended January 31, 2013 and January 31, 2012, the Company recorded charges related to certain employment contract obligations.Gain on sale of assets:The six months ended January 31, 2012 includes a gain of $9,196 on the sale of the Company’s investment in Satair A/S.Professional fees and other:In the three and six months ended January 31, 2013 and January 31, 2012, the Company recorded settlement related costs as well as legal and other professional fees, related to the Federal Securities Class Actions, Shareholder Derivative Lawsuits and Other Proceedings (see Note 14, Contingencies and Commitments in the 2012 Form 10-K) which pertain to matters that had been under audit committee inquiry as discussed in Note 2, Audit Committee Inquiry and Restatement, to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended July 31, 2007 (“2007 Form 10-K”). The receipt of insurance claim payments partly offset the costs discussed above in the six months ended January 31, 2013 and the three and six months ended January 31, 2012.The three and six months ended January 31, 2013 also includes a loss related to a fire at a manufacturing facility.