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Commitments and Contingencies (Details) (USD $)	Sep. 30, 2012
Operating leases, Future minimum payments due [Abstract]
Operating leases, Future minimum payments due	$ 9,486,000
Operating leases, Future minimum payments due, next twelve months	1,986,000
Clinical Research Study Obligations [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Purchase Obligation, Due in Next Twelve Months	3,700,000
Purchase Obligation	11,600,000
Pre Clinical Research Study Obligations [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Purchase Obligation, Due in Next Twelve Months	23,000
Minimum Purchase Obligation, Supply Agreement [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Minimum purchase obligations, total	2,191,000
Minimum purchase obligations due within one year	$ 1,341,000

X

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 16

-Subparagraph b(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Accounting Standards Codification

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-Section 55

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- Definition

Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 16

-Subparagraph b(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Accounting Standards Codification

-Topic 840

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-Section 55

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+ References

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+ References

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