自定义模块仅允许Magento 1.9中的完全管理员权限

I have created a custom module in Magento 1.9 and I want to access that module only if I'm logged in on a full admin account, but I want this to be default. If I'm logged in with another role, I don't want to have access at this module at all. And when I create a new user role, I don't want to have any option at I have created a custom module in Magento 1.9 a