How do I report a check from a class action lawsuit?

Hello,

 

I asked this question earlier and need more clarification as whether or not to report it. I received a $17 check as part of the reimbursement settlement for a class action lawsuit. Because I was a checking account holder-many years ago-, I was reimbursed for incorrectly and wrongly charged monthly fees.  Does this have to be reported and if so, how do I report it?

 

Thank You.