I investigated this stock when an alert told me that one of my favorite players ended an "Outperform" pick on it yesterday.
I concluded that this stock is one I should remain neutral on for now. Finance.yahoo.com tells me it has 37% insider ownership, which I find very attractive, and it's a "green" business, which I approve of on general principle. But the Fair Value Calculator at at htp://www.gurufocus.com says it's already used up most of it's upside potential, having a fair value only 15% higher than the price it's currenly trading at.
It's book value/share is at a 10 year high, and it's most recent quarterly earnings statement puts it on a pace to top it's 10 year earnings record for the full fiscal year, which makes it a stock I wouldn't want to go short on, but 15% is not sufficient upside potential to tempt me to the long side on it either.
On the charts it looks to be on a downtrend price-wise, but it will have to go down to around $90/share to give me much interest in going long.