What is the average cost of remodeling a bathroom?

The bath room is about 6x12. There was titlng place half way up the walls(the floor was not done. The rest of the walls were painted by the contractors), a new toilet, a new bathtub with sliding glass doors, a messager head for the shower, a new cabinet with 4 lights with it, a fan in the bathroom with a way for air to ciruclate out(with a light attached to the fan, a towel rack, a metal toilet paper dispencer and a metal robe hook placed on the bathroom door. That what was done. I do realise that it is difficult to estimated when there are other factors un-answered, but please give me a ball park estimate. I believe the current contractors are charging way too much money for a relativly simple project.|||$4-6 thousand.|||$5,000 is about the minimum to have complete bathroom renovation done by a professional.