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Lexicon established a collaboration with Taconic Farms, Inc. for the marketing, distribution and licensing of certain lines of knockout mice. This represents the total cash received to date.

No definition available.

Name:	lxrx_TaconicTotalCashReceived
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Data Type:	xbrli:monetaryItemType
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Under the Texas Enterprise Fund award, Lexicon has a maximum aggregate exposure if Lexicon fails to create the specified number of jobs or obtain credits.

No definition available.

Name:	lxrx_TigmMaximumExposure
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Data Type:	xbrli:monetaryItemType
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Under the terms of the Texas Enterprise Fund award, subject to certain credits, if Lexicon fails to create the specified number of jobs, the state may require Lexicon to repay $2,415 for each job Lexicon falls short.

No definition available.

Name:	lxrx_TigmPerJobPaymentAmount
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In July 2005, Lexicon received a $35.0 million award from the Texas Enterprise Fund for the creation of a knockout mouse embryonic stem cell library containing 350,000 cell lines for the Texas Institute for Genomic Medicine using Lexicon's proprietary gene trappying technology, which Lexicon completed in 2007.

No definition available.

Name:	lxrx_TxEnterpriseFundAward
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

In July 2005, the Texas Enterprise Fund awarded $15.0 million to the Texas A&M University System for the creation of facilities and infrastructure to house the library.

No definition available.