Can I legally refuse service to a disruptive, foul-mouthed customer?

I own a small retail specialty store in a small town. Recently a customer came into my store and became very loud, foul mouthed and very disruptive with my employee. This person was told to leave the store and refused and became even louder and more disruptive. I called the police, the customer left the store before the police arrived. My question is; in the future if this person or another person with this type of behavior comes into my store, am I within my rights to legally refuse service to this person?