A delayed 10-K filing adds to the drama surrounding this tech stock.Super Micro Computer (SMCI -2.48%) stock came under attack from short-sellers this week, with the computer server specialist being accused of several financial improprieties.The question for investors is: Should they be worried about the allegations and sell the stock, or is any dip in the share price a buying opportunity?The short reportShort-selling is the process of an investor borrowing a stock from a current shareholder and then immedi ...