Call - I agree w/ Rocco's read but with just the min raise he is asking you to call and you should take him up on it - and bust him when you catch the right flop. It is also possible that if he sees you as an observant opponent that this is a play - he realizes you will see his small stack and assume that he is going to push it to the end, therefore you may lay the hand down and he only risked the bare minimum to pick up some chips.