You need to investigate the laws of your undisclosed jurisdiction. If it's not the U.S., post your question in a forum that relates to the laws of your nation.

Nobody can promise you that your client will pay a small claims judgment but, if you're ready to give up on future business with the client and want to be in a position of advantage over other unsecured creditors, odds are a money judgment will improve your position. (Again, your experience may vary depending upon the laws of your undisclosed jurisdiction.)