The thing I'd look at is how long ago it was, combined with what you had to say about it now. I would bring it up in your interviews, and be just as upfront and contrite as you've been here. Not much else you can do aside from that.

I disqualify WAY more candidates for not disclosing crimes than for the crime itself. Having made mistakes in the past is one thing...lying about them on the application is another. We ALWAYS find out.

Good luck.