Common Stock	3 Months Ended
Mar. 31, 2015
Equity [Abstract]
Common Stock	Common Stock On September 16, 2014, the Company entered into an At Market Issuance Sales Agreement, with MLV & Co. LLC (“MLV”), under which the Company may, at its discretion, sell its common stock with a sales value of up to a maximum of $8,000,000 through at-the-market sales on the NYSE MKT (the "ATM Offering"). On March 20, 2015, the Company and MLV mutually agreed to terminate this agreement. MLV acted as the sole sales agent for any sales made in the ATM Offering for a 3% commission on gross proceeds. The common stock was sold at market prices at the time of the sale, and, as a result, prices varied. Sales in the ATM Offering were being made pursuant to the prospectus supplement dated September 16, 2014, which supplemented the Company's prospectus dated January 22, 2013, filed as part of the shelf registration statement that was declared effective by the Securities and Exchange Commission (“SEC”) on January 22, 2013. During the three months ended March 31, 2015, the Company sold 17,000 shares in the ATM Offering at a weighted-average selling price of $1.11 per share for gross proceeds of $19,000. Net proceeds totaled $18,000, reflecting reductions for the 3% commission to MLV and other offering expenses. The Company initially recorded approximately $125,000 of expenses for the offering, excluding MLV commissions and other fees, in prepaid expenses and other current assets. The Company charged approximately $100,000 of these costs against additional paid-in capital during the three months ended March 31, 2015 upon the termination of the ATM offering.

Common Stock

3 Months Ended

Mar. 31, 2015

On September 16, 2014, the Company entered into an At Market Issuance Sales Agreement, with MLV & Co. LLC (“MLV”), under which the Company may, at its discretion, sell its common stock with a sales value of up to a maximum of $8,000,000 through at-the-market sales on the NYSE MKT (the "ATM Offering"). On March 20, 2015, the Company and MLV mutually agreed to terminate this agreement. MLV acted as the sole sales agent for any sales made in the ATM Offering for a 3% commission on gross proceeds. The common stock was sold at market prices at the time of the sale, and, as a result, prices varied. Sales in the ATM Offering were being made pursuant to the prospectus supplement dated September 16, 2014, which supplemented the Company's prospectus dated January 22, 2013, filed as part of the shelf registration statement that was declared effective by the Securities and Exchange Commission (“SEC”) on January 22, 2013. During the three months ended March 31, 2015, the Company sold 17,000 shares in the ATM Offering at a weighted-average selling price of $1.11 per share for gross proceeds of $19,000. Net proceeds totaled $18,000, reflecting reductions for the 3% commission to MLV and other offering expenses. The Company initially recorded approximately $125,000 of expenses for the offering, excluding MLV commissions and other fees, in prepaid expenses and other current assets. The Company charged approximately $100,000 of these costs against additional paid-in capital during the three months ended March 31, 2015 upon the termination of the ATM offering.