There is no IRS requirement that you report your foreign taxes paid - U.S. tax law provides for a foreign tax credit on Form 1116, to claim a credit against your federal tax to mitigate double taxation - both U.S. and foreign - on the same foreign income.
It is always to your advantage to claim the credit; however if the amount is small, such as in your case, there are situations where it could be somewhat more of benefit to exclude it.