INTANGIBLE ASSETS

6 Months Ended

Nov. 30, 2012

INTANGIBLE ASSETS

7. INTANGIBLE ASSETS

A summary of intangible assets as of November 30, 2012 and May 31, 2012 is as follows (in thousands):

	November 30, 2012							May 31, 2012
	(unaudited)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	$	23,684	$	(3,179	)	$	20,505	$	12,198	$	(1,973	)	$	10,225
Non-compete agreements		3,469		(3,084	)		385		3,136		(2,844	)		292
Trade names		2,962		(282	)		2,680		2,962		(207	)		2,755
Technology		5,112		(900	)		4,212		5,112		(634	)		4,478
Licenses		664		—			664		758		—			758
Total	$	35,891	$	(7,445	)	$	28,446	$	24,166	$	(5,658	)	$	18,508

Amortization expense for the three months ended November 30, 2012 and 2011 was $1.0 million and $0.5 million, respectively. Amortization expense for the six months ended November 30, 2012 and 2011 was $1.7 million and $1.0 million, respectively.