It's rather small, but.....in that sort of space, you'll need to feed hay, and also have things for them to do - I have a picnic bench in my goat paddock - something for them to climb on, but big logs etc. work as well. Goats need a shelter too, either in the paddock or you bring them in to an outbuilding each night.
As FRH says too, you may well need double height stock fencing.