Intangibles, Net

12 Months Ended

Jul. 31, 2012

Intangible Assets, Net (Excluding Goodwill) [Abstract]

(7)

Intangibles, Net

Intangible assets consist of the following (in thousands, except remaining useful life):

	July 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Weighted Average Remaining Useful Life (in years)
Amortized intangible assets:
Covenants not to compete	$	11,087	$	(10,685	)	$	402		4
Supply contracts		26,041		(18,762	)		7,279		6
Licenses and databases		1,316		(1,012	)		304		1
	$	38,444	$	(30,459	)	$	7,985

	July 31 , 2011
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Weighted Average Remaining Useful Life (in years)
Amortized intangible assets:
Covenants not to compete	$	10,896	$	(10,486	)	$	410		3
Supply contracts		27,238		(15,409	)		11,829		3
Licenses and databases		1,337		(828	)		509		3
	$	39,471	$	(26,723	)	$	12,748

Aggregate amortization expense on intangible assets was $4.5 million, $4.7 million and $3.9 million for the fiscal years ended July 31, 2012, 2011 and 2010, respectively. Intangible amortization expense for the next five fiscal years based upon July 31, 2012 intangible assets is expected to be as follows (in thousands):

2013	$	3,499
2014		1,186
2015		765
2016		543
2017		317
Thereafter		1,675
	$	7,985

- Definition

The entire disclosure for all or part of the information related to intangible assets.

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