The following tables set forth the computation of basic and diluted loss per share of common stock for the three months ended March 31, 2014 and 2013, respectively. We computed basic loss per share for the three months ended March 31, 2014 and 2013, respectively, using the weighted average number of shares outstanding during the periods. Diluted loss per share for the three months ended March 31, 2014 and 2013, would have reflected additional shares of common stock, related to our convertible senior common stock, that would have been outstanding if dilutive potential shares of common stock had been issued, as well as

an adjustment to net income available to common stockholders as applicable to common stockholders that would result from their assumed issuance; however, the convertible senior common stock was excluded from the calculation of diluted loss per share for the three months ended March 31, 2014, and 2013 respectively, because it was anti-dilutive (dollars in thousands, except share or per share amounts).