Subsequent Event	9 Months Ended
Sep. 30, 2011
Subsequent Event	Note 12—Subsequent Event On November 9, 2011, the Company drew down $2.0 million under its existing convertible credit facility with Pyxis, an affiliate of Alticor Inc., and issued a convertible promissory note to Pyxis in that amount. The terms of the convertible promissory note are consistent with the terms set forth in Note 6 of the Notes to our Condensed Financial Statements. The principal amount of the note is due and payable on June 30, 2012. The note bears interest at a variable rate equal to the “prime rate” and the interest is payable quarterly. Prior to the maturity date, any portion or the entire outstanding principal and any accrued but unpaid interest under the note is convertible at Pyxis’s election into shares of our common stock at a price of $5.6783 per share. Immediately following the issuance of the note on November 9, 2011, $13.0 million was outstanding and $1.3 million was available to borrow under the credit facility.

Subsequent Event

9 Months Ended

Sep. 30, 2011

Note 12—Subsequent Event

On November 9, 2011, the Company drew down $2.0 million under its existing convertible credit facility with Pyxis, an affiliate of Alticor Inc., and issued a convertible promissory note to Pyxis in that amount. The terms of the convertible promissory note are consistent with the terms set forth in Note 6 of the Notes to our Condensed Financial Statements. The principal amount of the note is due and payable on June 30, 2012. The note bears interest at a variable rate equal to the “prime rate” and the interest is payable quarterly. Prior to the maturity date, any portion or the entire outstanding principal and any accrued but unpaid interest under the note is convertible at Pyxis’s election into shares of our common stock at a price of $5.6783 per share. Immediately following the issuance of the note on November 9, 2011, $13.0 million was outstanding and $1.3 million was available to borrow under the credit facility.