Ok. Yea i would reraise him again, probably only to 5 or 6$, then if he flat calls i would push all in after the flop, but if he reraises you all in or reraises it right up to 15$ or something you have to make a decision on how important that 25$ is to you...because i think vs a player that tight 90% of the time at least you will be KK vs AA. Tight players tend to reraise with KK/AA only. I reraise tight guys with QQ or something to try to figure out whether or not they have an overpair or are sitting on AK/AQ, and if they have KK they will even flat call at times (which TOTALLY messes you up if the flop comes undercards and you are QQ vs KK, when you are putting them on AK) because they are that scared of AA (i presume). So reraise, and see what he does. If he moved all in I personally would lay the hand down, because a tight player won't be making that move with QQ or AK. However, I'm not sure that laying down KK preflop is ever a good idea, because as i said before in the worst case scenario you will still suck out on occasion. It all depends on how much your stack means to you. If i had a 10$ stack, i would move all in without a moments hesitation, even if i was almost positive he had AA...with say 40$ at stake, it is a far different story and i would almost certainly fold to a tight player reraising my stack size all in. You need to protect your stack when it is deep, and getting stacked KK vs AA isn't exactly doing that.
Another option is this: presume he has AA, flat call his bet, and hope like hell you get a K. The pot odds are bad, but the implied odds are amazing because you will probably double up. However, flat calling with KK preflop is, in general, a very bad thing to do. At least if you reraise, you should know where you are at.