No, the Reg Sho numbers are meaningless. Check any other stock, including Fortune 100, you'll see 40-80% "short" is typical. It's just MMs selling before they buy. Technically a short, but one that lasts for seconds, if that long. MM's don't want to get caught holding shares on thinly traded stocks.
Even the most bearish investor wouldn't short an illiquid stock like ASTC.
Profit and a pretty good one is driving ASTC. If they go back to their old ways of 1 good quarter, then losses, it will be back under a buck. If they truly have turned the corner, $3+ may be in the future.