Krispy Kreme Posts Net Loss After Charges  NEW YORK (Reuters) - Struggling doughnut shop chain Krispy  Kreme Doughnuts Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KKD.N target=/stocks/quickinfo/fullquote"&gt;KKD.N&lt;/A&gt; on Monday reported an unexpected  quarterly net loss because of impairment charges and store  closing costs.