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Note 12 - Stock Incentive Plan (Tables)
6 Months Ended
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Nonvested Share Activity [Table Text Block]
   
Non-vested Shares
   
Weighted average grant date fair value
 
As of December 31, 2013 and as of June 30, 2014
    21,034     $ 366.24