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Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2013
Subsequent Event
Subsequent Event	12. Subsequent Event A total of approximately $17.1 million of the Notes have been presented to the Company for conversion. Accordingly, the Company has issued a total of approximately 3.2 million shares of common stock in conversion of the principal amount of the Notes. The Company has issued an additional 0.6 million shares of common stock and paid approximately $0.8 million cash in settlement of the interest make-whole provision related to the converted Notes.