Ganesha idol signifies the qualities of a perfect manager.

elephant head : wisdom and intelligence
long trunk : sixth sense to anticipate danger in advance
big ears : to listen carefully
small eyes : to investigate minutely
big belly : to keep secret, and maintain balance in all experience of life
small mouth : very minimum talking
sitting positing : patience
axe : to keep control over desires
rope : to pull devotees near truth
modakam : represents fruits of worship and Devotion
rat : represents power of desire which like rat can slowly eat away all the
merits of devotee.
simhasana : represents king ship
vastra & jewelry : represents the grandeur thus blessings of Goddess Lakshmi.
abhaya mudra : giving blessings to devotees