They've been in business since the late 1990's, that I'm personally aware of.
I don't know how long they were in business before that.
I used to live near their store and would stop in once in a while. That would have been late 80s, maybe early 90s, I think.
I remember doing a lot of shopping when Clinton gave me the "buy it before they ban it" scare the demonrats are infamous for.