XML 21 R13.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Net Loss Per Share
3 Months Ended
Jun. 30, 2011
Net Loss Per Share

Note 8. Net Loss Per Share

Basic net loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing net loss by the weighted-average number of dilutive common shares outstanding during the period. Diluted shares outstanding is calculated by adding to the weighted shares outstanding any potential (unissued) shares of common stock from outstanding stock options and warrants based on the treasury stock method. In periods when a net loss is reported, all common stock equivalents are excluded from the calculation because they would have an anti-dilutive effect, meaning the loss per share would be reduced. Therefore, in periods when a loss is reported basic and dilutive loss per share is the same value.

Excluded from the calculation of diluted weighted-average shares outstanding are underlying outstanding stock options of approximately 5,024,000 shares and 6,058,000 shares as of June 30, 2011 and 2010, respectively, and unvested shares of restricted stock and restricted stock units of approximately 837,000 shares and 653,000 shares as of June 30, 2011 and 2010, respectively.