Sales of Common Stock	6 Months Ended
Jun. 30, 2013
Sales of Common Stock [Abstract]
Sales of Common Stock	Note 11 - Sales of Common Stock In October 2012, the Company entered into an At Market Issuance Sales Agreement ("2012 Sales Agreement"), under which the Board of Directors of the Company (the "Board") approved the Company's sale of up to an aggregate of $50 million in gross proceeds of its common stock. The shares of common stock are being offered pursuant to a shelf registration statement filed with the SEC in March 2013, which replaced the previous shelf registration statement filed in 2010. The Board has appointed a standing Finance Committee (the "Committee") to assist with its responsibilities to monitor, provide advice to senior management of the Company and approve all capital raising activities. The Committee has been authorized by the Board, absent any action by the Board to the contrary, to take any additional actions necessary to carry out the Board's authorization of the issuance and sale of the common stock sold pursuant to the 2012 Sales Agreement. In doing so, the Committee is authorized to set the amount of shares to be sold, the period of time during which such sales may occur and the minimum sales price per share. During the six months ended June 30, 2013, the Company sold 4.6 million shares at sales prices ranging from of $2.06 ─ $2.63 per share, resulting in $10.0 million in net proceeds. The most recent sales to occur under the 2012 Sales Agreement were on May 6, 2013.

Note 11 - Sales of Common Stock

In October 2012, the Company entered into an At Market Issuance Sales Agreement ("2012 Sales Agreement"), under which the Board of Directors of the Company (the "Board") approved the Company's sale of up to an aggregate of $50 million in gross proceeds of its common stock. The shares of common stock are being offered pursuant to a shelf registration statement filed with the SEC in March 2013, which replaced the previous shelf registration statement filed in 2010. The Board has appointed a standing Finance Committee (the "Committee") to assist with its responsibilities to monitor, provide advice to senior management of the Company and approve all capital raising activities. The Committee has been authorized by the Board, absent any action by the Board to the contrary, to take any additional actions necessary to carry out the Board's authorization of the issuance and sale of the common stock sold pursuant to the 2012 Sales Agreement. In doing so, the Committee is authorized to set the amount of shares to be sold, the period of time during which such sales may occur and the minimum sales price per share. During the six months ended June 30, 2013, the Company sold 4.6 million shares at sales prices ranging from of $2.06 ─ $2.63 per share, resulting in $10.0 million in net proceeds. The most recent sales to occur under the 2012 Sales Agreement were on May 6, 2013.