Convertible Debt	3 Months Ended
Mar. 31, 2013
Convertible Debt [Abstract]
Convertible Debt	Note 5—Convertible Debt On August 17, 2006, our existing 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 bear interest at the prime rate and require quarterly interest payments. On April 1, 2013, we executed a consent with Pyxis which allows us to defer the payment of interest on our convertible debt beginning on April 1, 2013, and continues to the earlier of the completion of a financing or July 1, 2013. At March 31, 2013, accrued interest expense was $114,726 and recorded in accounts payable. The principal amount of any borrowing under this credit facility is convertible at Pyxis’ election into a maximum of 2,521,222 shares of common stock, reflecting a conversion price of $5.6783 per share. On April 13, 2012, the Company borrowed the remaining $1,316,255 of available credit. This credit facility has been modified several times, including on November 29, 2012, to extend the due date to March 31, 2014. The fair value of convertible debt is estimated to approximate $0 at March 31, 2013.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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