We have a civil court system to handle stuff like this already.
Stealing more than a few thousand dollars is a felony, and felonies are handled in criminal court, not civil.
EDIT - The threshold amount varies. Sometimes it's as low as a few hundred dollars. However, the point stands on its own, because there's no universe where the sum in question is in misdemeanor territory.
We also have a criminal court system to handle stuff like this.