Idolatry is rendering to a creature the divine worship (in Greek, "latreia") due to God alone. Orthodox honor, venerate, and show love for the people represented by their images, but they do not give the divine worship due alone to God to the saints or their images or their relics.
Have you ever read about the bones of Elisha in the Scriptures?
Nobody was bowing down and rendering worshipful obeisance to Elisha's bones. It's a pretty desperate appeal.