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Convertible Debt
12 Months Ended
Dec. 31, 2013
Convertible Debt [Abstract]  
Convertible Debt
Note 5—Convertible Debt
 
On August 17, 2006, our credit facility with Pyxis was amended to provide the Company with access to approximately $14.3 million of additional working capital borrowings. Any amounts borrowed thereunder accrued interest at the prime rate and required quarterly interest payments. The principal amount of any borrowing under this credit facility was convertible at Pyxis’ election into a maximum of 2,521,222 shares of common stock, reflecting a conversion price of $5.6783 per share.
 
This credit facility had been modified several times, including on November 29, 2012, to extend the due date to March 31, 2014.
 
Immediately prior to the closing of the private placement of common stock on May 17, 2013, Pyxis converted all of the principal amount of debt outstanding into 2,521,222 shares of common stock. Accordingly, there is no convertible debt outstanding at December 31, 2013.