Acquisitions and divestitures.

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The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 44
-Subparagraph a(1)

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e

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- Definition

Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
-Subparagraph c

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 53
-Subparagraph d

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- Definition

The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 37, 45

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- Definition

The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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The minimum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 15, 17

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- Definition

This element represents the cash inflow during the period from the sale of a component of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 15, 16

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Acquisitions and Divestitures (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended		1 Months Ended				1 Months Ended	12 Months Ended
	Jul. 31, 2011 Year	Jul. 31, 2010	Dec. 31, 2009 Stickolor [Member]	Mar. 31, 2010 Securimed [Member]	Oct. 31, 2009 Welco [Member]	Jul. 31, 2010 Securimed, Stickolor and Welco [Member]	Nov. 30, 2010 ID Warehouse [Member]	Jul. 31, 2011 Teklynx [Member]	Jul. 31, 2011 Customer relationships [Member]	Jul. 31, 2010 Customer relationships [Member]	Jul. 31, 2011 Non-compete agreements [Member]
Acquisitions and Divestitures (Textuals) [Abstract]
Purchase price of acquisition	$ 7,970	$ 30,431	$ 18,459	$ 10,132	$ 1,840		$ 7,970
Purchased identifiable intangible assets to be amortized						9,310
Range of amortization of intangible assets, minimum years	5
Range of amortization of intangible assets, maximum years	10
Divestiture of business, net of cash retained in business	12,980							12,980
Gain on the sale of business	4,394							4,394
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	4,792	20,266
Other intangible assets									$ 1,846	$ 7,970	$ 487