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Condensed Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Thousands, unless otherwise specified | 283 Months Ended
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Sep. 30, 2014
Conversion of convertible preferred stock amount converted | $ 5,248
Series B Preferred Stock |
Conversion of convertible preferred stock amount converted | 15,000
Series C Preferred Stock |
Conversion of convertible preferred stock amount converted | $ 50,000

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