Series B Convertible Preferred Stock	12 Months Ended
Dec. 31, 2012
Series B Convertible Preferred Stock	14. Series B Convertible Preferred Stock On October 27, 2011, the Company entered into an agreement with BMO to convert all 35,217 outstanding shares of Series B into 1,349,300 shares of common stock, at the original conversion rate. In connection with this agreement, the Company made a dividend payment of $8.1 million, representing accrued dividends of $0.9 million plus the net present value of dividend payments through October 31, 2014, the earliest date that the Company could have called for BMO to redeem or convert, at BMO’s discretion, all of its preferred shares. As of October 31, 2011, the Series B was no longer entitled to receive preferred dividends. In connection with the conversion, BMO agreed that to the extent its holdings of common stock exceed 24.0% of the outstanding common stock solely by reason of the repurchase or redemption of common stock by the Company, the excess shares will be subject to an irrevocable proxy in favor of the Company to be voted in the same proportion as the votes cast by all shareholders other than BMO. On January 6, 2012, pursuant to an agreement with BMO, BMO’s 35,217 shares of the Series B converted into 1,349,300 shares of the Company’s common stock. As a result of this conversion, all of the shares of Series B have been retired.

14. Series B Convertible Preferred Stock

On October 27, 2011, the Company entered into an agreement with BMO to convert all 35,217 outstanding shares of Series B into 1,349,300 shares of common stock, at the original conversion rate. In connection with this agreement, the Company made a dividend payment of $8.1 million, representing accrued dividends of $0.9 million plus the net present value of dividend payments through October 31, 2014, the earliest date that the Company could have called for BMO to redeem or convert, at BMO’s discretion, all of its preferred shares. As of October 31, 2011, the Series B was no longer entitled to receive preferred dividends. In connection with the conversion, BMO agreed that to the extent its holdings of common stock exceed 24.0% of the outstanding common stock solely by reason of the repurchase or redemption of common stock by the Company, the excess shares will be subject to an irrevocable proxy in favor of the Company to be voted in the same proportion as the votes cast by all shareholders other than BMO. On January 6, 2012, pursuant to an agreement with BMO, BMO’s 35,217 shares of the Series B converted into 1,349,300 shares of the Company’s common stock. As a result of this conversion, all of the shares of Series B have been retired.