You can't just pay a fine on this offense, because it carries the possibility of jail time. A Class A theft charge carries up to one year in county jail or up to 2 years of probation and a fine of $4,000. That being said, it sounds like you may have a defense to this charge because you lacked the proper intent (and may have done a sufficient amount of due diligence to insure that no checks went unpaid).
You should contact a criminal defense attorney who practices in the county you are charged. He or she will be able to explain whether or not they can do what is known as a walk-through where a personal bond is approved beforehand and you walk-through the jail instead of sitting for up to 24 hours. If the attorney tells you that a personal bond is not available, then you can either post the full amount of the bond or hire a bail bondsman to do a walk-through on a surety bond.