Light volume, some profit taking or shorts testing the waters, a non-event as it recovered.
It appears shares are being held tight right now, in anticipation of more good news, and perhaps a significant development. The short position remains exposed, needing to cover to complete their trade, and with HB gone, hopefully we get a nice reversal back closer to the levels before the HB financing dump. That would put this back to the $8 level.
That being said, what would a bullish PR do on top of all the good news of late do to market perception.
Management continues to gain credibility, as does the product's acceptance.