$50 nltrn 5 BB effective stacks facing a min raise

[tmcdmck]

Obviously sage applies with stacks these short. blinds 50/100. I found myself with k7o (I am tall stack), opponent is button and minraised me. he has been a pretty timid player, easy to bluff. What do you think i should do? shove over the top? read it as insane stregth and fold? he hasnt done this before. I am pretty sure I have 0% fold equity. Help!