help! former employer withholding check!

[hejira]

I used to work at a litigation support company that was very shady about their dealings with employees. As I had suspected they would, they withheld my final paycheck, worth about $350.00. I want it back, without having to spend any extra money (I am now unemployed.)
What is my next logical step?

 

[JETX]

Take them to small claims court. If you win, you will also recover your costs.