Stockholders' Equity (Details 7) (USD $)	Apr. 30, 2011	Apr. 30, 2006
Warrants
Warrants to purchase shares granted to the members of Symphony GenIsis Holdings LLC		4,250,000
Exercise price (in dollars per share)		$ 8.93
Outstanding warrants	0

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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

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Number of warrants or rights outstanding.

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