Intangible Assets

9 Months Ended

Jun. 30, 2011

Intangible Assets [Abstract]

Intangible Assets

(7) Intangible Assets

     Intangible assets consist principally of acquired patents and technology, customer relationships, licenses, and trademarks. The Company recorded amortization expense of $0.4 million for each of the three-month periods ended June 30, 2011 and 2010. The Company recorded amortization expenses of $1.2 million for each of the nine-month periods ended June 30, 2011 and 2010.

     Intangible assets consisted of the following (in thousands):

	Useful life		June 30,			September 30,
	(in years)		2011			2010
Customer list		9 — 11	$	8,657		$	8,657
Core technology		8 — 18		8,330			8,330
Patents and other		2 — 20		2,376			2,376
Trademarks				600			600
Less accumulated amortization of intangible assets				(5,866	)		(4,706	)
Intangible assets, net			$	14,097		$	15,257

     Based on the intangible assets in service as of June 30, 2011, estimated amortization expense for each of the next five fiscal years is as follows (in thousands):

Remainder of 2011	$	386
2012		1,544
2013		1,544
2014		1,544
2015		1,533
2016		1,395

     Future amortization amounts presented above are estimates. Actual future amortization expense may be different, as a result of future acquisitions, impairments, changes in amortization periods, or other factors.