Thanks for the short link, coming from the American side.  I don't have any short link that gives the total for US and Canadian.  As far as I can see from the Canadian side, the shorting is not very much. 

 

It could be that most of the shorts are still in position from that hit piece last July which drove the share price down from about 7.20.  Maybe most of them are the ones who got in first and are still very much in the money. If the price gets towards 7, we may see some covering.  (Just guessing)