Preferred Stock	12 Months Ended
Dec. 31, 2012
Preferred Stock [Abstract]
Preferred Stock [Text Block]	Preferred Stock Convertible Redeemable Series E 7% Preferred Stock On November 19, 2010, the Company sold 10,582,011 Preferred Offering Units consisting of (i) one share (“Preferred Share”) of Series E 7% Senior Convertible Preferred Stock (the “Series E Preferred Stock”), par value $0.01 per share, of the Company, (ii) a warrant to purchase 0.25 of a share of Common Stock (consisting of at issuance an aggregate of 1,322,486 warrants, adjusted to an aggregate of 1,769,588 as of December 31, 2012); and (iii) 0.0155 of a share of Common Stock (an aggregate of 164,418 common shares). Each Preferred Offering Unit was priced at $0.945 and total gross and net proceeds received by the Company were $10,000,000 and $8,876,700, respectively. Monthly dividend and principal payments began on March 21, 2011, and continued on the 19th of each month thereafter with the final payment due on May 20, 2012. On October 25, 2012, the Company completed the redemption of all 2,351,558 outstanding shares of its Series E Preferred Stock, for an aggregate cash redemption price of approximately $3.4 million, $2.5 million of which was funded by money placed into escrow when the Series E Preferred stock was issued in November 2010. The cash redemption included the repayment of $3.1 million outstanding principal, an additional early redemption premium of $235,000, which was in dividends, and $36,000 of accrued interest. Dividends on the Preferred Shares had accrued at a rate of 7% per annum and were payable monthly in arrears. Payments were made in cash or, upon notification to the holders, in shares of Company common stock, provided certain conditions were satisfied or holders of Preferred Shares agree to waive the conditions for that payment period. Through the October 25, 2012 redemption date, the Company had issued 7,950,107 shares of Company common stock in payment of monthly dividends and principal. The characteristics of the Series E Preferred Stock require that this instrument be treated as mezzanine equity. The Company bifurcated the fair value of the embedded conversion options and redemption options from the preferred stock since the conversion options and certain redemption options were determined to not be clearly and closely related to the Series E Preferred Stock and recorded the fair value of the embedded conversion and redemption options as long-term derivative liabilities. The Company also recorded the fair value of the warrants as a long-term derivative liability. The fair value of the preferred stock (net of issuance costs and discounts) and embedded derivatives as of December 31, 2011 were approximately $4.8 million and $391,700, respectively. The fair values of the warrant derivatives as of December 31, 2012 and 2011 were $101,200 and $82,700, respectively. The Company reports changes in the fair value of the embedded derivatives and warrant derivative in earnings within other income (expense), net (see Note 8).

Preferred Stock

Convertible Redeemable Series E 7% Preferred Stock

On November 19, 2010, the Company sold 10,582,011 Preferred Offering Units consisting of (i) one share (“Preferred Share”) of Series E 7% Senior Convertible Preferred Stock (the “Series E Preferred Stock”), par value $0.01 per share, of the Company, (ii) a warrant to purchase 0.25 of a share of Common Stock (consisting of at issuance an aggregate of 1,322,486 warrants, adjusted to an aggregate of 1,769,588 as of December 31, 2012); and (iii) 0.0155 of a share of Common Stock (an aggregate of 164,418 common shares). Each Preferred Offering Unit was priced at $0.945 and total gross and net proceeds received by the Company were $10,000,000 and $8,876,700, respectively.

Monthly dividend and principal payments began on March 21, 2011, and continued on the 19th of each month thereafter with the final payment due on May 20, 2012. On October 25, 2012, the Company completed the redemption of all 2,351,558 outstanding shares of its Series E Preferred Stock, for an aggregate cash redemption price of approximately $3.4 million, $2.5 million of which was funded by money placed into escrow when the Series E Preferred stock was issued in November 2010. The cash redemption included the repayment of $3.1 million outstanding principal, an additional early redemption premium of $235,000, which was in dividends, and $36,000 of accrued interest.

Dividends on the Preferred Shares had accrued at a rate of 7% per annum and were payable monthly in arrears. Payments were made in cash or, upon notification to the holders, in shares of Company common stock, provided certain conditions were satisfied or holders of Preferred Shares agree to waive the conditions for that payment period. Through the October 25, 2012 redemption date, the Company had issued 7,950,107 shares of Company common stock in payment of monthly dividends and principal.

The characteristics of the Series E Preferred Stock require that this instrument be treated as mezzanine equity. The Company bifurcated the fair value of the embedded conversion options and redemption options from the preferred stock since the conversion options and certain redemption options were determined to not be clearly and closely related to the Series E Preferred Stock and recorded the fair value of the embedded conversion and redemption options as long-term derivative liabilities. The Company also recorded the fair value of the warrants as a long-term derivative liability. The fair value of the preferred stock (net of issuance costs and discounts) and embedded derivatives as of December 31, 2011 were approximately $4.8 million and $391,700, respectively. The fair values of the warrant derivatives as of December 31, 2012 and 2011 were $101,200 and $82,700, respectively. The Company reports changes in the fair value of the embedded derivatives and warrant derivative in earnings within other income (expense), net (see Note 8).