You have to figure his raise preflop meant AK, AA, KK, QQ(unlikely), JJ, TT there's probably not much else. The flop bet is easily a continuation bet. So if you check and he turns up the heat and puts out a real bet out on the turn you pretty much have to give him credit for a better hand or a great bet.

I think this small turn bet is a great chance to put in a good sized raise and find out if your hand is best or not.