Will you go to jail for stealing a piece of candy?

I had a job as a janitor at a movie theater and one night I noticed the employees had left out some of the candy from concession. I took a bag of skittles and two weeks later, my boss called and said that they had caught it on tape and he fired me. This is undersrandable but then he also told me that the theater was gonna call the cops and prosecute... Seems a little exsessive but should I be worried?