Net loss per share is presented in accordance with authoritative guidance which requires the presentation of “basic” and “diluted” earnings per share. Basic net loss per share is computed by dividing earnings available to common shareholders by the weighted-average shares of common stock outstanding during the period. For the purposes of calculating diluted net loss per share, the denominator includes both the weighted average number of shares of common stock outstanding during the period and the weighted average number of shares of potential dilutive shares of common stock, such as stock options, RSUs and DSUs, calculated using the treasury stock method. Basic and diluted net loss per share was the same for all the periods presented as the impact of potential dilutive shares outstanding was anti-dilutive due to the Company’s net loss position.

The following table sets forth our computation of basic and diluted net loss per common share (amounts in thousands, except per share amounts):

The number of common shares used in the computation of diluted net loss per share for the three and six months ended July 31, 2015 and 2014 does not include the effect of the following potentially outstanding common shares because the effect would have been anti-dilutive (amounts in thousands):