Subsequent Event

6 Months Ended

Jun. 30, 2013

Subsequent Events [Abstract]

Subsequent Events [Text Block]

9. Subsequent Event

On July 16, 2013, the Company’s shelf registration statement on Form S-3 that was filed on July 3, 2013, was declared effective by the SEC. The registration statement contains two prospectuses (i) a base prospectus which covers the offer, issuance and sale of up to a maximum aggregate offering price of $50 million of the Company’s common stock, warrants or units and (ii) a sales agreement prospectus covering the offer, issuance and sale by the Company of up to a maximum aggregate offering price of $15 million of the Company’s common stock that may be issued and sold under a sales agreement with Cantor Fitzgerald & Co. The Company entered into a Controlled Equity Offering^SM Sales Agreement (ATM) with Cantor Fitzgerald & Co., pursuant to which the Company may sell shares of its common stock through Cantor Fitzgerald & Co., as sales agent, for aggregate proceeds of up to $15 million. Shares of common stock sold under the ATM are to be sold at market prices prevailing at the time of sale or prices related to such prevailing market prices. The Company will pay compensation to Cantor Fitzgerald & Co. at a fixed commission of 3% of the gross sales price per share. The Company has not sold any shares under the ATM.