Do I have rights to a business idea that another company used?

Why would they owe you anything? Do you have a patent on your invention? If not you don't own anything. Did you send it to them with a written agreement that they would not use it without your permission or that they would pay you for it if they liked it, or did you just send it to them as a suggestion? Without a signed contract you have nothing. Best thing to do is to apply for a patent on the invention if it has been less than a year since you disclosed the idea to them. Remember only the true inventor can file for a patent. If you get the patent granted then you can sue them for infringement.