If you look at RLGT, a trade was made at $2.20, something like that, about 50c over the previous closing price. Sometimes I think these way out of whack trades are made to conceal new highs or low. In other words, traders are always scanning for new price events. If you put in a dummy trade that conceals new highs or lows, it can be easier to buy/sell if you're not sending new information to the market.
http://stockcharts.com/h-sc/ui?s=rlgt
http://stockcharts.com/h-sc/ui?s=rlgt