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Note 13 - Equity Compensation Plan (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
   
Number of
restricted  shares
   
Weighted 
average grant
date fair value per
non-vested share
 
             
Non-vested, January 1, 2012
           
Granted
    74,761       7.26  
Vested
           
Forfeited
           
Non-vested, December 31, 2012
    74,761       7.26