Note 7. Other Intangible Assets

12 Months Ended

May 31, 2011

Intangible Assets Disclosure [Text Block]

7. OTHER INTANGIBLE ASSETS

		May 31, 2011							May 31, 2010
	Weighted Average Life	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
		(in thousands)							(in thousands)
Intangible assets subject to amortization:
Deferred licensing costs	5 yrs	$	1,013	$	(579	)	$	434	$	1,013	$	(502	)	$	511
Distribution rights	10 yrs		4,492		(3,359	)		1,133		4,492		(2,863	)		1,629
Customer lists	16 yrs		5,215		(2,117	)		3,098		4,819		(1,684	)		3,135
Non-compete agreements	5 yrs		1,650		(935	)		715		1,650		(605	)		1,045
Developed product technology	17 yrs		51,097		(8,597	)		42,500		51,086		(5,586	)		45,500
Trademarks / tradenames	17 yrs		1,615		(281	)		1,334		1,613		(186	)		1,427
Total amortizable assets			65,082		(15,868	)		49,214		64,673		(11,426	)		53,247
Intangible assets not subject to amortization:
Deferred licensing costs			4,919		-			4,919		4,381		-			4,381
Total non-amortizable assets			4,919		-			4,919		4,381		-			4,381
Total other intangible assets		$	70,001	$	(15,868	)	$	54,133	$	69,054	$	(11,426	)	$	57,628

Amortization of intangible assets amounted to $4.4 million, $4.3 million and $3.7 million for the years ended May 31, 2011, 2010 and 2009, respectively. The following table presents our estimate of amortization expense for each of the next five fiscal years and thereafter (in thousands):

Year Ending May 31:
2012		4,301
2013		3,886
2014		3,609
2015		3,554
2016		3,554
Thereafter		30,310
	$	49,214