Tire has a indent line very small?

I went to mcdonalds today through the drive through and it was very narrow. I bumped the curb and felt it bump barely. However now there is a small indent on the tire that follows the lines of the side wall, is it dangerous to drive on this? I just got these new tires and really hope this one is not damaged, it's not super noticable but if you look at the tire close you can see a line going from the edge of the rim to the edge of the tire. It's not irregular shaped, or pushing outward just a slight inward groove. Anyone with some expertise on this? How much would it cost to repair? Can it be repaired?