Exercise Of Common Stock Warrants

3 Months Ended

Mar. 31, 2012

Exercise Of Common Stock Warrants [Abstract]

Exercise Of Common Stock Warrants

NOTE 6 EXERCISE OF COMMON STOCK WARRANTS

In February 2012, a warrant holder exercised the right to purchase 57,000 shares of the common stock of the Company, with an exercise price of $3.30 per share, pursuant to a cashless exercise whereby the Company, in a net share settlement, issued 17,148 shares of its common stock to the warrant holder based on the excess of the market price over the exercise price on the date of exercise.

During January and February 2011, various warrant holders exercised their rights to purchase an aggregate of 1,993,444 shares of the common stock of the Company, with an exercise price of $4.20 per share, pursuant to cash exercises whereby the Company received proceeds of approximately $8.4 million.