Well the problem is a black hole doesn't release radiation. When matter is pulled in it releases forms of radiation such as x-rays. By knowing this we can detect black holes, by the x-rays matter gives off when sucked in. Plus when it comes to black holes, and what they can do its all theories. So even a small black hole probubly amounts to nothing anyways.
Watch black holes focus light into a stream of light patricles so small that no one can actualy see the light, and turns all forms of energy into light. O.O'
When matter is sucked into a black hole, it increases its mass. Over time, it gives off a small amount of radiation, a single photon at a time. If it isn't increasing its mass, the radiation eventually leads to the dissipation of the black hole. In stellar size black holes, this takes many times the age of the universe.
In the micro-black holes that can theoretically be created in modern day particle accelerators, it is entirely different. The black holes dissipate almost instantly, through their radiation. Before the black hole has enough time to suck anything through its event horizon, it has already evaporated.
