Basic and Diluted Net Income Per Common Share

3 Months Ended

Sep. 30, 2011

Basic and Diluted Net Income Per Common Share [Abstract]

Basic and Diluted Net Income Per Common Share

2. Basic and Diluted Net Income Per Common Share

     Basic net income per common share is computed by dividing the net income for the period by the weighted-average number of common shares outstanding for the period. For diluted net income per common share, the weighted average shares include the incremental common shares issuable upon the exercise of stock options and warrants and unvested restricted shares and restricted stock units (using the treasury stock method). The incremental common shares for stock options, warrants and unvested restricted shares and restricted stock units are excluded from the calculation of diluted net income per share, if their effect is anti-dilutive. Diluted net income per share for the three months ended September 30, 2011 and 2010 excludes the effect of approximately 43,000 and 534,000 stock options, warrants and unvested restricted shares and restricted stock units in the calculation of the incremental common shares, respectively, as their effect would have been anti-dilutive.