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Public Offering of Common Stock
9 Months Ended
Oct. 31, 2012
Public Offering of Common Stock [Abstract]  
Public Offering of Common Stock
8. Public Offering of Common Stock

In June 2011, the Company completed a public offering of 2,300,000 shares of its common stock, par value $0.01. After deducting underwriting discounts and commissions and expenses of the offering, net proceeds to the Company were approximately $31.0 million.