What happens when someone writes me a bad check?

I am a girl scout troop leader. Recently we sold nuts and chocolates. One of my scouts mom paid me with a check that came back NSF. She refuses to pay me now saying she doesn't have the money. What are my options? Can I have her arrested for theft? Or is this just a civil matter?
Update: This wasnt just a little a check it was for 172.00. And if she was hurt by the economy she shouldn't drown her sorrows in Girl Scout chocolates. I don't want my scouts to think its ok to steal.
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