It seems to be a running trend that racist jokes in my office are ok. I've heard conversations saying it's ok because it's a joke and that anyone offended is too stupid to realise that it actually funny 
My problem is how to handle it. Some of these "jokes" are coming from the owner (very small company) and there is nobody to actually complain to.
Odd that these "jokes" never happened when we had people of different races in the company but now we don't it's happening on a daily basis.
Aside from telling them that they are racist and the idiots I don't know what else I can do.