The immediate catalyst is day/swing traders. This was so deeply oversold and manipulated downward that most "longs" won't even break even until $20 even if they averaged down, so no resistance on top.
Then you have the possibility that the company is past the dilution phase to keep the doors open, so that selling pressure is gone and has probably been replaced with someone with deep pockets who converted a boatload of cheap shares at the bottom who are now wanting to make a killing.
The other thing that may be going on is I saw a mention not too long ago about the FDA lifting the menthol restrictions to buy votes for the upcoming election. Or there could be positive developments along those lines in the legal system that we don't know about yet but insiders do...