I still have a modest core position. I do think there's a chance they'll figure out how to make a consistent profit, though as I've said before, I don't have a lot of faith that TBP will be able to lead that charge.
When? I have no idea. I thought they had figured it out after the last few quarters, but clearly, they haven't. Negative gross profit is just bad, bad, bad. My personal opinion is that they have a good business segment, high quality products, service and employees, but they lack the seasoned high-tech manufacturing leadership that would make this a slam dunk.
I don't see a huge amount of downside risk such as liquidation. The worst case scenario IMHO is that the price falls down again - below $2, hopefully not below $1 again, and someone comes in and buys them up at a modest premium. Right now, I have no plans to invest more, but depending on how things go, both PPS wise and financial reporting wise, that could change.
Hope that helps.