Basically, you cannot protect an idea or concept. The practical result of an idea on the other hand, may be protected by copyright or design right.
When you have a good idea, it is always wise to elaborate and capture your idea. This way you can prove that you were the ‘first’ to come up with this idea. Especially when you have the intention to talk to third parties about the possibilities to implement your idea. There are various options and we can advise you on this topic!
An idea as such cannot be protected, the practical implementation of an idea may be protectable under copyright or design law.