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Business acquisition cost of acquired entity purchase price excluding bank debt assumed.

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Business acquisition purchase price allocation increase in goodwill.

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Business acquisition purchase price allocation increase in intangible assets.

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Business acquisition purchase price allocation increase in working capital.

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Business combination step acquisition equity interest in acquiree additional percentage.

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Maximum percentage of common stock value outstanding.

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Amount of cash paid to acquire the entity.

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The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination.

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Fair Value of the liabilities incurred by the acquirer to former owners of the acquiree, including the fair value of any contingent consideration. If liabilities transferred as consideration remain within the combined entity after the business combination (for example, because the assets or liabilities were transferred to the acquiree rather than to its former owners), and the acquirer therefore retains control of them; in that situation, the acquirer measures those liabilities at their carrying amounts immediately before the acquisition date.

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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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Acquisitions (Details Textual) (USD $)	3 Months Ended		1 Months Ended
Acquisitions (Details Textual) (USD $)	Aug. 31, 2012	Aug. 31, 2012 Customer relationships [Member]	Nov. 30, 2010 Quest [Member]	Nov. 03, 2010 Quest [Member]	Nov. 03, 2010 Quest [Member] Restricted Stock [Member]
Acquisition (Additional Textual) [Abstract]
Total consideration paid to Quest shareholders	$ 19,400,000			$ 41,700,000
Purchase percentage of quest				95.00%
Increase in intangible assets		6.3
Cash payment				39,100,000
Restricted stock issued to Quest shareholders					2,635,000
Restricted stock issued to Quest shareholders, shares			186,000
Assumed debt, net of cash on hand				2,276,000
Remaining purchase consideration based upon future financial performance	5.00%
Common stock aggregate value	2,400,000
Percentage of aggregate value consideration of outstanding common stock	20.00%
Value of Acquisition	4,900,000
Acquisitions (Textual) [Abstract]
Increase in net working capital	1,100,000
Increase in fixed assets	3,000,000
Increase in goodwill	$ 8,900,000