With a smaller debt, a decision has to be made as to which route to take. Court fees even if you do not hire a lawyer and anyone who has ever instructed a lawyer will realize how their costs can be increased.
You should also review the evidence that you need to support your position. A case of type “he said/then I said” with little or no corroborating evidence may sometimes resemble nothing more than a coin flip, while correspondence illustrating the state of mind of the parties, what they agreed to, and when, better establish responsibility for the situation.