Manipulation I may be wrong, but it looked to me like this was being held down at $1.65 to accommodate a six-figure share cross. As part of this scheme, there was a roving wall of 100,000 shares which moved around between $1.65 and $1.67.
The volume jumped by about 200,000 with no impact on the bid/ask numbers, leading me to believe a cross occurred. Then shortly after that, it appeared that a large buyer got tired of the games and took out the wall in one fell swoop.
It appears that the games are done for now, and the ask looks rather thin up to and including $1.70.