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Note 3 - Stock-based Compensation (Tables)
9 Months Ended
Oct. 31, 2012
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
   
Restricted Shares
 
   
Shares
   
Weighted-Average Per Share Grant Date Fair Value
 
Balance at January 31, 2012
           
Granted
    18,000       $2.20  
Vested
    (13,500)
 
    $2.20  
Forfeited
           
Balance of unvested awards at October 31, 2012
    4,500       $2.20