Slice the tofu into 2 inch pieces. Press the tofu between a double layer of dish towels topped with a 3 pound board for 3 minutes. Arrange the slices in a shallow baking pan. Mix the ingredients for the teriyaki sauce. Pour the sauce on the tofu slices and marinate for 1 ½ hours on each side. Drain. Heat the olive oil in a skillet. Add the tofu slices and fry for 3 minutes each side until golden brown. Sprinkle with parsley and scallions.