As I posted, a small cap fund manager (see tweet above) is about to tip the stock, so there is definitely interest in the stock and no doubt that fund was accumulating.
Last week was also end of FY selling, so there were never going to be as many sellers around this week, if you were intending to sell, most would exit last week, so with the positive chart and general interest, this was bound to go up.
Directors were buying this back in March, so the signals have been there for a while.