Good to see you are being throrough when decididing when and where to invest. :)
botch911 is right, at present and as you can probably see, this stock is being Capped.
Myself, I am happy to hold however if you are a long term patient investor then the stock should be fine.
Email the company with a list of your questions, or at least the ones that you feel relavent to them. There should be a couple of folk here that have been with PNA for a while so when they read your post, you should get half your answer anyways.
Good Luck!
PNA Price at posting:
0.0¢ Sentiment: Buy Disclosure: Not Held