I've seen the small buys at the ask. But I've also occasionally seen small sells at the bid, too. Not sure what is going on. It doesn't really affect the price in the long run, but I'm glad to see it driving the bashers crazy.
GHDC has always lagged SFMI in volume. It seems to be pretty tightly held- remember, PQ and maybe other insiders got most of the shares when it was created, and GHDC hasn't really issued a lot of shares since as SFMI did. So I don't think there are a lot of loose shares floating around. I think most are just holding waiting for liftoff.