The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

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-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
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The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount of amortization expense expected to be recognized during the fourth twelve-month period following the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount of amortization expense expected to be recognized during the twelve-month period following the balance sheet date.

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The amount of amortization expense expected to be recognized during the third twelve-month period following the balance sheet date.

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The amount of amortization expense expected to be recognized during the second twelve-month period following the balance sheet date.

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Future amortization expense current year.

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Intangible assets.

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Intangible Assets (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
Intangible Assets (Details) (USD $) In Thousands	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Sep. 30, 2010
Summary of acquired intangible assets subject to amortization
Gross Carrying Value	$ 27,768		$ 27,768		$ 27,854
Accumulated Amortization	16,136		16,136		14,527
Intangible Assets (Textuals) [Abstract]
Aggregate amortization expense	570	345	1,796	1,079
2011			2,336
2012			2,079
2013			2,078
2014			1,641
2015			1,392
Manufacturing technologies, core products and cell lines [Member]
Summary of acquired intangible assets subject to amortization
Gross Carrying Value	11,664		11,664		11,644
Accumulated Amortization	8,360		8,360		7,693
Trademarks, licenses and patents [Member]
Summary of acquired intangible assets subject to amortization
Gross Carrying Value	3,654		3,654		3,547
Accumulated Amortization	1,329		1,329		997
Customer lists and supply agreements [Member]
Summary of acquired intangible assets subject to amortization
Gross Carrying Value	12,322		12,322		12,537
Accumulated Amortization	6,330		6,330		5,816
Noncompete Agreements [Member]
Summary of acquired intangible assets subject to amortization
Gross Carrying Value	128		128		126
Accumulated Amortization	$ 117		$ 117		$ 21