Intangible Assets (Tables)

9 Months Ended

Feb. 28, 2013

Intangible assets

A summary of intangible assets as of February 28, 2013 and May 31, 2012 is as follows (in thousands):

	February 28, 2013							May 31, 2012
	(unaudited)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	$	21,462	$	(3,559	)	$	17,903	$	12,198	$	(1,973	)	$	10,225
Non-compete agreements		3,719		(3,164	)		555		3,136		(2,844	)		292
Trade names		4,075		(362	)		3,713		2,962		(207	)		2,755
Technology		5,112		(1,033	)		4,079		5,112		(634	)		4,478
Licenses		649		—			649		758		—			758
Total	$	35,017	$	(8,118	)	$	26,899	$	24,166	$	(5,658	)	$	18,508