Melt 1 tablespoon butter in a large skillet coated with cooking spray over medium-high heat. Sprinkle scallops with paprika and 1/8 teaspoon salt. Add scallops to pan; cook 3 minutes on each side or until browned. Remove from pan, and keep warm.
Add orange juice and chile to the pan, scraping pan to loosen browned bits. Bring to a boil, and cook until reduced to 1/4 cup (about 1 minute). Add 1 tablespoon butter and 1/8 teaspoon salt, stirring with a whisk until smooth. Serve the sauce with scallops, and garnish with the onions.