Related Party Transactions	6 Months Ended
Related Party Transactions	Jun. 30, 2014
Related Party Transaction, Due from (to) Related Party [Abstract]
Related Party Transactions	Related Party Transactions Exela PharmaSci, Inc. The Company signed a commercialization agreement with Exela PharmaSci, Inc. (“Exela”) in 2007, whereby Exela agreed to pay to the Company a contractual percentage share of Exela’s net profit from the sales of licensed products. CMEA Ventures, which owns approximately 7.6% of the Company's common stock, owns over 10% of Exela’s outstanding capital stock. Thomas R. Baruch, one of the Company's directors, also serves on the board of directors of Exela and, as a limited partner in the CMEA Ventures funds that hold such shares of Exela, has an indirect pecuniary interest in the shares of Exela held by CMEA Ventures. The Company recognized revenue from the revenue sharing arrangement of $2.1 million for the three months and $4.1 million for the six months ended June 30, 2014, and $0.4 million for the three months and $1.5 million for the six months ended June 30, 2013. The Company had no receivables from Exela at June 30, 2014. Alexander A. Karsner Alexander A. Karsner is a director of Codexis and provided consulting services to the Company for the six months ended June 30, 2014 and 2013. Consulting services paid to Mr. Karsner was $30,000 for each of the three months ended June 30, 2014 and 2013, and $60,000 for each of the six months ended June 30, 2014 and 2013. The Company owed Mr. Karsner $30,000 at June 30, 2014, which is reflected in accounts payable in its condensed consolidated balance sheet.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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