Our board of directors may establish the authorized number of directors from time to time by resolution. The current authorized number of directors is eight. Our current directors, if elected, will continue to serve as directors until the next annual meeting of stockholders and until his or her successor has been elected and qualified, or until his or her earlier death, resignation, or removal.
Our board of directors held seven meetings during 2013. The board of directors also acted eleven times by unanimous written consent. No member of our board of directors attended fewer than 75% of the aggregate of the total number of meetings of the board of directors (held during the period for which he or she was a director) and the total number of meetings held by all committees of the board of directors on which such director served (held during the period that such director served). Members of our board of directors are invited and encouraged to attend each annual meeting of stockholders.