Bidois competed in two Paralympics, firstly in 1992 and then again in 1996. In 1992 he left medalless after finishing fourth in the heat of the 100m backstroke, fifth in the final of the breaststroke, fifth in his heat of the 100m freestyle, 200m medley and 50m freestyle. In 1996 he was seventeenth in the 50m freestyle heats, fifteenth in the 100m freestyle heats, fourth in the 200m medley final and won a silver medal in the 100m breaststroke.