A loooong loooong time. I have held this for years. (I know, I know) but I mentally wrote it off after I stood to loose $40k. So I continue to hold 17,050 shares in a hope one day they manage to get the world to see the value of their Needle technology. I notice the only one seemingly interested in buying is the director who now holds 25.9%
I wish I had his optimism.