This kind of speculation doesn't really make much sense. You will never catch the bottom except with blind luck.
Want proof? The stock was at $1.63 less than 4 months ago (even traded at $1.57), and now you are wondering when you can get in under $2. It might happen. Might even go to zero.
Who among the market timers was waiting on the sidelines until this past May 2012. "Loaded the boat" below $1.70? Up over 50% in just a few months? Or maybe you bought options (preferably short dated) and really made a killing. Can we see a show of hands?